Commit | Line | Data |
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3263d5a2 | 1 | /* Basic character set support. |
aaef169d | 2 | Copyright (C) 2001, 2002, 2003, 2004, 2005, |
38087490 | 3 | 2006 Free Software Foundation, Inc. |
ce03bf76 KH |
4 | Copyright (C) 1995, 1997, 1998, 1999, 2000, 2001 |
5 | National Institute of Advanced Industrial Science and Technology (AIST) | |
6 | Registration Number H14PRO021 | |
327719ee | 7 | Copyright (C) 2003, 2004 |
3263d5a2 KH |
8 | National Institute of Advanced Industrial Science and Technology (AIST) |
9 | Registration Number H13PRO009 | |
4ed46869 | 10 | |
369314dc KH |
11 | This file is part of GNU Emacs. |
12 | ||
13 | GNU Emacs is free software; you can redistribute it and/or modify | |
14 | it under the terms of the GNU General Public License as published by | |
15 | the Free Software Foundation; either version 2, or (at your option) | |
16 | any later version. | |
4ed46869 | 17 | |
369314dc KH |
18 | GNU Emacs is distributed in the hope that it will be useful, |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | GNU General Public License for more details. | |
4ed46869 | 22 | |
369314dc KH |
23 | You should have received a copy of the GNU General Public License |
24 | along with GNU Emacs; see the file COPYING. If not, write to | |
4fc5845f LK |
25 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
26 | Boston, MA 02110-1301, USA. */ | |
4ed46869 | 27 | |
68c45bf0 | 28 | #include <config.h> |
68c45bf0 | 29 | |
4ed46869 | 30 | #include <stdio.h> |
3263d5a2 KH |
31 | #include <unistd.h> |
32 | #include <ctype.h> | |
4ed46869 | 33 | #include <sys/types.h> |
4ed46869 | 34 | #include "lisp.h" |
3263d5a2 | 35 | #include "character.h" |
4ed46869 KH |
36 | #include "charset.h" |
37 | #include "coding.h" | |
fc6b09bf | 38 | #include "disptab.h" |
3263d5a2 | 39 | #include "buffer.h" |
4ed46869 | 40 | |
04c2f2c5 | 41 | /*** GENERAL NOTES on CODED CHARACTER SETS (CHARSETS) *** |
4ed46869 | 42 | |
3263d5a2 | 43 | A coded character set ("charset" hereafter) is a meaningful |
04c2f2c5 | 44 | collection (i.e. language, culture, functionality, etc.) of |
3263d5a2 | 45 | characters. Emacs handles multiple charsets at once. In Emacs Lisp |
04c2f2c5 DL |
46 | code, a charset is represented by a symbol. In C code, a charset is |
47 | represented by its ID number or by a pointer to a struct charset. | |
4ed46869 | 48 | |
3263d5a2 KH |
49 | The actual information about each charset is stored in two places. |
50 | Lispy information is stored in the hash table Vcharset_hash_table as | |
51 | a vector (charset attributes). The other information is stored in | |
04c2f2c5 | 52 | charset_table as a struct charset. |
4ed46869 | 53 | |
3263d5a2 | 54 | */ |
4ed46869 | 55 | |
3263d5a2 KH |
56 | /* List of all charsets. This variable is used only from Emacs |
57 | Lisp. */ | |
4ed46869 | 58 | Lisp_Object Vcharset_list; |
4ed46869 | 59 | |
3263d5a2 KH |
60 | /* Hash table that contains attributes of each charset. Keys are |
61 | charset symbols, and values are vectors of charset attributes. */ | |
62 | Lisp_Object Vcharset_hash_table; | |
4ed46869 | 63 | |
3263d5a2 KH |
64 | /* Table of struct charset. */ |
65 | struct charset *charset_table; | |
4ed46869 | 66 | |
3263d5a2 | 67 | static int charset_table_size; |
5af5dd92 | 68 | static int charset_table_used; |
4ed46869 | 69 | |
3263d5a2 | 70 | Lisp_Object Qcharsetp; |
4ed46869 | 71 | |
3263d5a2 KH |
72 | /* Special charset symbols. */ |
73 | Lisp_Object Qascii; | |
2fe1edd1 | 74 | Lisp_Object Qeight_bit; |
3263d5a2 KH |
75 | Lisp_Object Qiso_8859_1; |
76 | Lisp_Object Qunicode; | |
4ed46869 | 77 | |
3263d5a2 KH |
78 | /* The corresponding charsets. */ |
79 | int charset_ascii; | |
2fe1edd1 | 80 | int charset_eight_bit; |
3263d5a2 KH |
81 | int charset_iso_8859_1; |
82 | int charset_unicode; | |
b0e3cf2b | 83 | |
7c7dceee KH |
84 | /* The other special charsets. */ |
85 | int charset_jisx0201_roman; | |
86 | int charset_jisx0208_1978; | |
87 | int charset_jisx0208; | |
c1a08b4c | 88 | |
3263d5a2 KH |
89 | /* Value of charset attribute `charset-iso-plane'. */ |
90 | Lisp_Object Qgl, Qgr; | |
c1a08b4c | 91 | |
d1a04588 KH |
92 | /* Charset of unibyte characters. */ |
93 | int charset_unibyte; | |
4ed46869 | 94 | |
3263d5a2 KH |
95 | /* List of charsets ordered by the priority. */ |
96 | Lisp_Object Vcharset_ordered_list; | |
4ed46869 | 97 | |
dbbb237d | 98 | /* Incremented everytime we change Vcharset_ordered_list. This is |
64165ae2 | 99 | unsigned short so that it fits in Lisp_Int and never matches |
dbbb237d KH |
100 | -1. */ |
101 | unsigned short charset_ordered_list_tick; | |
4ed46869 | 102 | |
3263d5a2 KH |
103 | /* List of iso-2022 charsets. */ |
104 | Lisp_Object Viso_2022_charset_list; | |
35e623fb | 105 | |
3263d5a2 KH |
106 | /* List of emacs-mule charsets. */ |
107 | Lisp_Object Vemacs_mule_charset_list; | |
108 | ||
109 | struct charset *emacs_mule_charset[256]; | |
4ed46869 KH |
110 | |
111 | /* Mapping table from ISO2022's charset (specified by DIMENSION, | |
112 | CHARS, and FINAL-CHAR) to Emacs' charset. */ | |
3263d5a2 KH |
113 | int iso_charset_table[ISO_MAX_DIMENSION][ISO_MAX_CHARS][ISO_MAX_FINAL]; |
114 | ||
4beef065 | 115 | Lisp_Object Vcharset_map_path; |
3263d5a2 KH |
116 | |
117 | Lisp_Object Vchar_unified_charset_table; | |
118 | ||
64165ae2 DL |
119 | /* Defined in chartab.c */ |
120 | extern void | |
121 | map_char_table_for_charset P_ ((void (*c_function) (Lisp_Object, Lisp_Object), | |
122 | Lisp_Object function, Lisp_Object table, | |
123 | Lisp_Object arg, struct charset *charset, | |
124 | unsigned from, unsigned to)); | |
125 | ||
69f8de5b KH |
126 | #define CODE_POINT_TO_INDEX(charset, code) \ |
127 | ((charset)->code_linear_p \ | |
128 | ? (code) - (charset)->min_code \ | |
129 | : (((charset)->code_space_mask[(code) >> 24] & 0x8) \ | |
130 | && ((charset)->code_space_mask[((code) >> 16) & 0xFF] & 0x4) \ | |
131 | && ((charset)->code_space_mask[((code) >> 8) & 0xFF] & 0x2) \ | |
132 | && ((charset)->code_space_mask[(code) & 0xFF] & 0x1)) \ | |
133 | ? (((((code) >> 24) - (charset)->code_space[12]) \ | |
134 | * (charset)->code_space[11]) \ | |
135 | + (((((code) >> 16) & 0xFF) - (charset)->code_space[8]) \ | |
136 | * (charset)->code_space[7]) \ | |
137 | + (((((code) >> 8) & 0xFF) - (charset)->code_space[4]) \ | |
138 | * (charset)->code_space[3]) \ | |
820ee249 KH |
139 | + (((code) & 0xFF) - (charset)->code_space[0]) \ |
140 | - ((charset)->char_index_offset)) \ | |
3263d5a2 KH |
141 | : -1) |
142 | ||
143 | ||
144 | /* Convert the character index IDX to code-point CODE for CHARSET. | |
145 | It is assumed that IDX is in a valid range. */ | |
146 | ||
820ee249 KH |
147 | #define INDEX_TO_CODE_POINT(charset, idx) \ |
148 | ((charset)->code_linear_p \ | |
149 | ? (idx) + (charset)->min_code \ | |
150 | : (idx += (charset)->char_index_offset, \ | |
151 | (((charset)->code_space[0] + (idx) % (charset)->code_space[2]) \ | |
152 | | (((charset)->code_space[4] \ | |
153 | + ((idx) / (charset)->code_space[3] % (charset)->code_space[6])) \ | |
154 | << 8) \ | |
155 | | (((charset)->code_space[8] \ | |
156 | + ((idx) / (charset)->code_space[7] % (charset)->code_space[10])) \ | |
157 | << 16) \ | |
158 | | (((charset)->code_space[12] + ((idx) / (charset)->code_space[11])) \ | |
159 | << 24)))) | |
4cf9710d | 160 | |
8a73a704 | 161 | |
046b1f03 | 162 | \f |
93bcb785 | 163 | |
e9ce014c KH |
164 | /* Set to 1 to warn that a charset map is loaded and thus a buffer |
165 | text and a string data may be relocated. */ | |
3263d5a2 | 166 | int charset_map_loaded; |
4ed46869 | 167 | |
e9ce014c | 168 | struct charset_map_entries |
4ed46869 | 169 | { |
e9ce014c KH |
170 | struct { |
171 | unsigned from, to; | |
172 | int c; | |
173 | } entry[0x10000]; | |
174 | struct charset_map_entries *next; | |
175 | }; | |
176 | ||
177 | /* Load the mapping information for CHARSET from ENTRIES. | |
4cf9710d | 178 | |
3263d5a2 | 179 | If CONTROL_FLAG is 0, setup CHARSET->min_char and CHARSET->max_char. |
8a73a704 | 180 | |
3263d5a2 KH |
181 | If CONTROL_FLAG is 1, setup CHARSET->min_char, CHARSET->max_char, |
182 | CHARSET->decoder, and CHARSET->encoder. | |
93bcb785 | 183 | |
3263d5a2 KH |
184 | If CONTROL_FLAG is 2, setup CHARSET->deunifier and |
185 | Vchar_unify_table. If Vchar_unified_charset_table is non-nil, | |
186 | setup it too. */ | |
4ed46869 | 187 | |
3263d5a2 | 188 | static void |
e9ce014c | 189 | load_charset_map (charset, entries, n_entries, control_flag) |
3263d5a2 | 190 | struct charset *charset; |
e9ce014c KH |
191 | struct charset_map_entries *entries; |
192 | int n_entries; | |
3263d5a2 | 193 | int control_flag; |
4ed46869 | 194 | { |
3263d5a2 | 195 | Lisp_Object vec, table; |
3263d5a2 KH |
196 | unsigned max_code = CHARSET_MAX_CODE (charset); |
197 | int ascii_compatible_p = charset->ascii_compatible_p; | |
198 | int min_char, max_char, nonascii_min_char; | |
3263d5a2 | 199 | int i; |
3263d5a2 | 200 | unsigned char *fast_map = charset->fast_map; |
99529c2c | 201 | |
e9ce014c KH |
202 | if (n_entries <= 0) |
203 | return; | |
204 | ||
205 | if (control_flag > 0) | |
8ac5a9cc | 206 | { |
3263d5a2 | 207 | int n = CODE_POINT_TO_INDEX (charset, max_code) + 1; |
6662e69b | 208 | |
374c5cfd | 209 | table = Fmake_char_table (Qnil, Qnil); |
3263d5a2 KH |
210 | if (control_flag == 1) |
211 | vec = Fmake_vector (make_number (n), make_number (-1)); | |
212 | else if (! CHAR_TABLE_P (Vchar_unify_table)) | |
374c5cfd | 213 | Vchar_unify_table = Fmake_char_table (Qnil, Qnil); |
6662e69b | 214 | |
3263d5a2 | 215 | charset_map_loaded = 1; |
2e344af3 | 216 | } |
6662e69b | 217 | |
e9ce014c | 218 | min_char = max_char = entries->entry[0].c; |
3263d5a2 | 219 | nonascii_min_char = MAX_CHAR; |
e9ce014c | 220 | for (i = 0; i < n_entries; i++) |
2e344af3 | 221 | { |
e9ce014c | 222 | unsigned from, to; |
3b4f4446 KH |
223 | int from_index, to_index; |
224 | int from_c, to_c; | |
e9ce014c | 225 | int idx = i % 0x10000; |
3263d5a2 | 226 | |
e9ce014c KH |
227 | if (i > 0 && idx == 0) |
228 | entries = entries->next; | |
229 | from = entries->entry[idx].from; | |
230 | to = entries->entry[idx].to; | |
3b4f4446 KH |
231 | from_c = entries->entry[idx].c; |
232 | from_index = CODE_POINT_TO_INDEX (charset, from); | |
233 | if (from == to) | |
6662e69b | 234 | { |
3b4f4446 KH |
235 | to_index = from_index; |
236 | to_c = from_c; | |
6662e69b | 237 | } |
3b4f4446 | 238 | else |
6662e69b | 239 | { |
3b4f4446 KH |
240 | to_index = CODE_POINT_TO_INDEX (charset, to); |
241 | to_c = from_c + (to_index - from_index); | |
6662e69b | 242 | } |
3b4f4446 KH |
243 | if (from_index < 0 || to_index < 0) |
244 | continue; | |
3263d5a2 | 245 | |
3263d5a2 | 246 | if (control_flag < 2) |
6662e69b | 247 | { |
3b4f4446 | 248 | int c; |
6662e69b | 249 | |
3b4f4446 KH |
250 | if (to_c > max_char) |
251 | max_char = to_c; | |
252 | else if (from_c < min_char) | |
253 | min_char = from_c; | |
254 | if (ascii_compatible_p) | |
255 | { | |
256 | if (! ASCII_BYTE_P (from_c)) | |
257 | { | |
258 | if (from_c < nonascii_min_char) | |
259 | nonascii_min_char = from_c; | |
260 | } | |
261 | else if (! ASCII_BYTE_P (to_c)) | |
262 | { | |
263 | nonascii_min_char = 0x80; | |
264 | } | |
265 | } | |
177c0ea7 | 266 | |
3b4f4446 KH |
267 | for (c = from_c; c <= to_c; c++) |
268 | CHARSET_FAST_MAP_SET (c, fast_map); | |
269 | ||
e9ce014c | 270 | if (control_flag == 1) |
3263d5a2 | 271 | { |
e9ce014c | 272 | unsigned code = from; |
e9ce014c | 273 | |
e9ce014c KH |
274 | if (CHARSET_COMPACT_CODES_P (charset)) |
275 | while (1) | |
276 | { | |
3b4f4446 | 277 | ASET (vec, from_index, make_number (from_c)); |
8f924df7 KH |
278 | if (NILP (CHAR_TABLE_REF (table, from_c))) |
279 | CHAR_TABLE_SET (table, from_c, make_number (code)); | |
e9ce014c KH |
280 | if (from_index == to_index) |
281 | break; | |
3b4f4446 | 282 | from_index++, from_c++; |
e9ce014c KH |
283 | code = INDEX_TO_CODE_POINT (charset, from_index); |
284 | } | |
285 | else | |
3b4f4446 | 286 | for (; from_index <= to_index; from_index++, from_c++) |
e9ce014c | 287 | { |
3b4f4446 | 288 | ASET (vec, from_index, make_number (from_c)); |
8f924df7 KH |
289 | if (NILP (CHAR_TABLE_REF (table, from_c))) |
290 | CHAR_TABLE_SET (table, from_c, make_number (from_index)); | |
e9ce014c | 291 | } |
3263d5a2 | 292 | } |
3263d5a2 | 293 | } |
2e344af3 KH |
294 | else |
295 | { | |
69f8de5b | 296 | unsigned code = from; |
3b4f4446 | 297 | |
69f8de5b KH |
298 | while (1) |
299 | { | |
300 | int c1 = DECODE_CHAR (charset, code); | |
8f924df7 | 301 | |
3263d5a2 KH |
302 | if (c1 >= 0) |
303 | { | |
3b4f4446 | 304 | CHAR_TABLE_SET (table, from_c, make_number (c1)); |
16fed1fc | 305 | CHAR_TABLE_SET (Vchar_unify_table, c1, make_number (from_c)); |
3263d5a2 KH |
306 | if (CHAR_TABLE_P (Vchar_unified_charset_table)) |
307 | CHAR_TABLE_SET (Vchar_unified_charset_table, c1, | |
308 | CHARSET_NAME (charset)); | |
309 | } | |
69f8de5b KH |
310 | if (from_index == to_index) |
311 | break; | |
3b4f4446 | 312 | from_index++, from_c++; |
69f8de5b | 313 | code = INDEX_TO_CODE_POINT (charset, from_index); |
3263d5a2 | 314 | } |
2e344af3 | 315 | } |
8ac5a9cc | 316 | } |
3263d5a2 KH |
317 | |
318 | if (control_flag < 2) | |
4ed46869 | 319 | { |
3263d5a2 KH |
320 | CHARSET_MIN_CHAR (charset) = (ascii_compatible_p |
321 | ? nonascii_min_char : min_char); | |
322 | CHARSET_MAX_CHAR (charset) = max_char; | |
e9ce014c | 323 | if (control_flag == 1) |
4ed46869 | 324 | { |
3263d5a2 KH |
325 | CHARSET_DECODER (charset) = vec; |
326 | CHARSET_ENCODER (charset) = table; | |
4ed46869 KH |
327 | } |
328 | } | |
2e344af3 | 329 | else |
8f924df7 | 330 | CHARSET_DEUNIFIER (charset) = table; |
4ed46869 KH |
331 | } |
332 | ||
12bcae05 | 333 | |
3263d5a2 KH |
334 | /* Read a hexadecimal number (preceded by "0x") from the file FP while |
335 | paying attention to comment charcter '#'. */ | |
12bcae05 | 336 | |
3263d5a2 KH |
337 | static INLINE unsigned |
338 | read_hex (fp, eof) | |
339 | FILE *fp; | |
340 | int *eof; | |
12bcae05 | 341 | { |
3263d5a2 KH |
342 | int c; |
343 | unsigned n; | |
12bcae05 | 344 | |
3263d5a2 KH |
345 | while ((c = getc (fp)) != EOF) |
346 | { | |
69f8de5b | 347 | if (c == '#') |
3263d5a2 KH |
348 | { |
349 | while ((c = getc (fp)) != EOF && c != '\n'); | |
350 | } | |
351 | else if (c == '0') | |
352 | { | |
353 | if ((c = getc (fp)) == EOF || c == 'x') | |
354 | break; | |
355 | } | |
8f924df7 | 356 | } |
3263d5a2 KH |
357 | if (c == EOF) |
358 | { | |
359 | *eof = 1; | |
360 | return 0; | |
361 | } | |
362 | *eof = 0; | |
363 | n = 0; | |
364 | if (c == 'x') | |
365 | while ((c = getc (fp)) != EOF && isxdigit (c)) | |
366 | n = ((n << 4) | |
367 | | (c <= '9' ? c - '0' : c <= 'F' ? c - 'A' + 10 : c - 'a' + 10)); | |
368 | else | |
369 | while ((c = getc (fp)) != EOF && isdigit (c)) | |
370 | n = (n * 10) + c - '0'; | |
e9ce014c KH |
371 | if (c != EOF) |
372 | ungetc (c, fp); | |
3263d5a2 KH |
373 | return n; |
374 | } | |
12bcae05 | 375 | |
537efd8d | 376 | |
3263d5a2 | 377 | /* Return a mapping vector for CHARSET loaded from MAPFILE. |
e9ce014c KH |
378 | Each line of MAPFILE has this form |
379 | 0xAAAA 0xCCCC | |
380 | where 0xAAAA is a code-point and 0xCCCC is the corresponding | |
381 | character code, or this form | |
382 | 0xAAAA-0xBBBB 0xCCCC | |
383 | where 0xAAAA and 0xBBBB are code-points specifying a range, and | |
384 | 0xCCCC is the first character code of the range. | |
4ed46869 | 385 | |
3263d5a2 KH |
386 | The returned vector has this form: |
387 | [ CODE1 CHAR1 CODE2 CHAR2 .... ] | |
e9ce014c KH |
388 | where CODE1 is a code-point or a cons of code-points specifying a |
389 | range. */ | |
4ed46869 | 390 | |
c449997d | 391 | extern void add_to_log P_ ((char *, Lisp_Object, Lisp_Object)); |
4ed46869 | 392 | |
e9ce014c KH |
393 | static void |
394 | load_charset_map_from_file (charset, mapfile, control_flag) | |
3263d5a2 KH |
395 | struct charset *charset; |
396 | Lisp_Object mapfile; | |
e9ce014c | 397 | int control_flag; |
4ed46869 | 398 | { |
e9ce014c KH |
399 | unsigned min_code = CHARSET_MIN_CODE (charset); |
400 | unsigned max_code = CHARSET_MAX_CODE (charset); | |
3263d5a2 KH |
401 | int fd; |
402 | FILE *fp; | |
3263d5a2 KH |
403 | int eof; |
404 | Lisp_Object suffixes; | |
e9ce014c KH |
405 | struct charset_map_entries *head, *entries; |
406 | int n_entries; | |
4ed46869 | 407 | |
3263d5a2 KH |
408 | suffixes = Fcons (build_string (".map"), |
409 | Fcons (build_string (".TXT"), Qnil)); | |
4ed46869 | 410 | |
4beef065 | 411 | fd = openp (Vcharset_map_path, mapfile, suffixes, NULL, Qnil); |
3263d5a2 KH |
412 | if (fd < 0 |
413 | || ! (fp = fdopen (fd, "r"))) | |
414 | { | |
415 | add_to_log ("Failure in loading charset map: %S", mapfile, Qnil); | |
e9ce014c | 416 | return; |
3263d5a2 | 417 | } |
4ed46869 | 418 | |
e9ce014c KH |
419 | head = entries = ((struct charset_map_entries *) |
420 | alloca (sizeof (struct charset_map_entries))); | |
421 | n_entries = 0; | |
3263d5a2 KH |
422 | eof = 0; |
423 | while (1) | |
424 | { | |
e9ce014c KH |
425 | unsigned from, to; |
426 | int c; | |
427 | int idx; | |
4ed46869 | 428 | |
e9ce014c | 429 | from = read_hex (fp, &eof); |
3263d5a2 KH |
430 | if (eof) |
431 | break; | |
e9ce014c KH |
432 | if (getc (fp) == '-') |
433 | to = read_hex (fp, &eof); | |
434 | else | |
435 | to = from; | |
436 | c = (int) read_hex (fp, &eof); | |
ac4137cc | 437 | |
e9ce014c KH |
438 | if (from < min_code || to > max_code || from > to || c > MAX_CHAR) |
439 | continue; | |
ac4137cc | 440 | |
e9ce014c | 441 | if (n_entries > 0 && (n_entries % 0x10000) == 0) |
3263d5a2 | 442 | { |
e9ce014c KH |
443 | entries->next = ((struct charset_map_entries *) |
444 | alloca (sizeof (struct charset_map_entries))); | |
445 | entries = entries->next; | |
3263d5a2 | 446 | } |
e9ce014c KH |
447 | idx = n_entries % 0x10000; |
448 | entries->entry[idx].from = from; | |
449 | entries->entry[idx].to = to; | |
450 | entries->entry[idx].c = c; | |
451 | n_entries++; | |
3263d5a2 KH |
452 | } |
453 | fclose (fp); | |
454 | close (fd); | |
177c0ea7 | 455 | |
e9ce014c | 456 | load_charset_map (charset, head, n_entries, control_flag); |
4ed46869 KH |
457 | } |
458 | ||
e9ce014c KH |
459 | static void |
460 | load_charset_map_from_vector (charset, vec, control_flag) | |
461 | struct charset *charset; | |
462 | Lisp_Object vec; | |
463 | int control_flag; | |
23d2a7f1 | 464 | { |
e9ce014c KH |
465 | unsigned min_code = CHARSET_MIN_CODE (charset); |
466 | unsigned max_code = CHARSET_MAX_CODE (charset); | |
467 | struct charset_map_entries *head, *entries; | |
468 | int n_entries; | |
469 | int len = ASIZE (vec); | |
470 | int i; | |
23d2a7f1 | 471 | |
e9ce014c | 472 | if (len % 2 == 1) |
3263d5a2 | 473 | { |
e9ce014c KH |
474 | add_to_log ("Failure in loading charset map: %V", vec, Qnil); |
475 | return; | |
3263d5a2 | 476 | } |
35e623fb | 477 | |
e9ce014c KH |
478 | head = entries = ((struct charset_map_entries *) |
479 | alloca (sizeof (struct charset_map_entries))); | |
480 | n_entries = 0; | |
481 | for (i = 0; i < len; i += 2) | |
35e623fb | 482 | { |
e9ce014c KH |
483 | Lisp_Object val, val2; |
484 | unsigned from, to; | |
485 | int c; | |
486 | int idx; | |
d2665018 | 487 | |
e9ce014c KH |
488 | val = AREF (vec, i); |
489 | if (CONSP (val)) | |
bbf12bb3 | 490 | { |
e9ce014c KH |
491 | val2 = XCDR (val); |
492 | val = XCAR (val); | |
493 | CHECK_NATNUM (val); | |
494 | CHECK_NATNUM (val2); | |
495 | from = XFASTINT (val); | |
496 | to = XFASTINT (val2); | |
bbf12bb3 | 497 | } |
e9ce014c | 498 | else |
bbf12bb3 | 499 | { |
e9ce014c KH |
500 | CHECK_NATNUM (val); |
501 | from = to = XFASTINT (val); | |
bbf12bb3 | 502 | } |
e9ce014c KH |
503 | val = AREF (vec, i + 1); |
504 | CHECK_NATNUM (val); | |
505 | c = XFASTINT (val); | |
76d7b829 | 506 | |
e9ce014c KH |
507 | if (from < min_code || to > max_code || from > to || c > MAX_CHAR) |
508 | continue; | |
76d7b829 | 509 | |
dcc694d7 | 510 | if (n_entries > 0 && (n_entries % 0x10000) == 0) |
e9ce014c KH |
511 | { |
512 | entries->next = ((struct charset_map_entries *) | |
513 | alloca (sizeof (struct charset_map_entries))); | |
514 | entries = entries->next; | |
515 | } | |
516 | idx = n_entries % 0x10000; | |
517 | entries->entry[idx].from = from; | |
518 | entries->entry[idx].to = to; | |
519 | entries->entry[idx].c = c; | |
520 | n_entries++; | |
521 | } | |
76d7b829 | 522 | |
e9ce014c | 523 | load_charset_map (charset, head, n_entries, control_flag); |
ac4137cc KH |
524 | } |
525 | ||
3263d5a2 KH |
526 | static void |
527 | load_charset (charset) | |
528 | struct charset *charset; | |
76d7b829 | 529 | { |
3263d5a2 | 530 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP_DEFERRED) |
76d7b829 | 531 | { |
3263d5a2 | 532 | Lisp_Object map; |
76d7b829 | 533 | |
3263d5a2 KH |
534 | map = CHARSET_MAP (charset); |
535 | if (STRINGP (map)) | |
e9ce014c | 536 | load_charset_map_from_file (charset, map, 1); |
bbf12bb3 | 537 | else |
e9ce014c | 538 | load_charset_map_from_vector (charset, map, 1); |
3263d5a2 | 539 | CHARSET_METHOD (charset) = CHARSET_METHOD_MAP; |
76d7b829 | 540 | } |
4ed46869 | 541 | } |
76d7b829 | 542 | |
3263d5a2 KH |
543 | |
544 | DEFUN ("charsetp", Fcharsetp, Scharsetp, 1, 1, 0, | |
545 | doc: /* Return non-nil if and only if OBJECT is a charset.*/) | |
546 | (object) | |
547 | Lisp_Object object; | |
23d2a7f1 | 548 | { |
3263d5a2 | 549 | return (CHARSETP (object) ? Qt : Qnil); |
76d7b829 KH |
550 | } |
551 | ||
4ed46869 KH |
552 | |
553 | void | |
374c5cfd KH |
554 | map_charset_chars (c_function, function, arg, |
555 | charset, from, to) | |
556 | void (*c_function) P_ ((Lisp_Object, Lisp_Object)); | |
557 | Lisp_Object function, arg; | |
558 | struct charset *charset; | |
559 | unsigned from, to; | |
4ed46869 | 560 | { |
3263d5a2 | 561 | Lisp_Object range; |
374c5cfd | 562 | int partial; |
3263d5a2 | 563 | |
8f924df7 | 564 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP_DEFERRED) |
3263d5a2 KH |
565 | load_charset (charset); |
566 | ||
374c5cfd KH |
567 | partial = (from > CHARSET_MIN_CODE (charset) |
568 | || to < CHARSET_MAX_CODE (charset)); | |
569 | ||
570 | if (CHARSET_UNIFIED_P (charset) | |
571 | && CHAR_TABLE_P (CHARSET_DEUNIFIER (charset))) | |
4ed46869 | 572 | { |
374c5cfd KH |
573 | map_char_table_for_charset (c_function, function, |
574 | CHARSET_DEUNIFIER (charset), arg, | |
575 | partial ? charset : NULL, from, to); | |
4ed46869 | 576 | } |
374c5cfd | 577 | |
3263d5a2 | 578 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_OFFSET) |
4ed46869 | 579 | { |
374c5cfd KH |
580 | int from_idx = CODE_POINT_TO_INDEX (charset, from); |
581 | int to_idx = CODE_POINT_TO_INDEX (charset, to); | |
582 | int from_c = from_idx + CHARSET_CODE_OFFSET (charset); | |
583 | int to_c = to_idx + CHARSET_CODE_OFFSET (charset); | |
584 | ||
585 | range = Fcons (make_number (from_c), make_number (to_c)); | |
3263d5a2 | 586 | if (NILP (function)) |
5af5dd92 | 587 | (*c_function) (arg, range); |
3263d5a2 KH |
588 | else |
589 | call2 (function, range, arg); | |
c83ef371 | 590 | } |
3263d5a2 KH |
591 | else if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP) |
592 | { | |
593 | if (! CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
594 | return; | |
374c5cfd KH |
595 | map_char_table_for_charset (c_function, function, |
596 | CHARSET_ENCODER (charset), arg, | |
597 | partial ? charset : NULL, from, to); | |
3263d5a2 | 598 | } |
374c5cfd | 599 | else if (CHARSET_METHOD (charset) == CHARSET_METHOD_SUBSET) |
4ed46869 | 600 | { |
374c5cfd KH |
601 | Lisp_Object subset_info; |
602 | int offset; | |
603 | ||
604 | subset_info = CHARSET_SUBSET (charset); | |
605 | charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
606 | offset = XINT (AREF (subset_info, 3)); | |
607 | from -= offset; | |
608 | if (from < XFASTINT (AREF (subset_info, 1))) | |
609 | from = XFASTINT (AREF (subset_info, 1)); | |
610 | to -= offset; | |
611 | if (to > XFASTINT (AREF (subset_info, 2))) | |
612 | to = XFASTINT (AREF (subset_info, 2)); | |
613 | map_charset_chars (c_function, function, arg, charset, from, to); | |
4ed46869 | 614 | } |
374c5cfd KH |
615 | else /* i.e. CHARSET_METHOD_SUPERSET */ |
616 | { | |
617 | Lisp_Object parents; | |
4ed46869 | 618 | |
374c5cfd KH |
619 | for (parents = CHARSET_SUPERSET (charset); CONSP (parents); |
620 | parents = XCDR (parents)) | |
bbf12bb3 | 621 | { |
374c5cfd KH |
622 | int offset; |
623 | unsigned this_from, this_to; | |
624 | ||
625 | charset = CHARSET_FROM_ID (XFASTINT (XCAR (XCAR (parents)))); | |
626 | offset = XINT (XCDR (XCAR (parents))); | |
627 | this_from = from - offset; | |
628 | this_to = to - offset; | |
629 | if (this_from < CHARSET_MIN_CODE (charset)) | |
630 | this_from = CHARSET_MIN_CODE (charset); | |
631 | if (this_to > CHARSET_MAX_CODE (charset)) | |
632 | this_to = CHARSET_MAX_CODE (charset); | |
111daccf KH |
633 | map_charset_chars (c_function, function, arg, charset, |
634 | this_from, this_to); | |
bbf12bb3 | 635 | } |
35e623fb | 636 | } |
4ed46869 KH |
637 | } |
638 | ||
374c5cfd | 639 | DEFUN ("map-charset-chars", Fmap_charset_chars, Smap_charset_chars, 2, 5, 0, |
04c2f2c5 | 640 | doc: /* Call FUNCTION for all characters in CHARSET. |
374c5cfd | 641 | FUNCTION is called with an argument RANGE and the optional 3rd |
3263d5a2 | 642 | argument ARG. |
4ed46869 | 643 | |
374c5cfd KH |
644 | RANGE is a cons (FROM . TO), where FROM and TO indicate a range of |
645 | characters contained in CHARSET. | |
4ed46869 | 646 | |
374c5cfd | 647 | The optional 4th and 5th arguments FROM-CODE and TO-CODE specify the |
8f924df7 | 648 | range of code points of target characters. */) |
374c5cfd KH |
649 | (function, charset, arg, from_code, to_code) |
650 | Lisp_Object function, charset, arg, from_code, to_code; | |
4ed46869 | 651 | { |
374c5cfd | 652 | struct charset *cs; |
16fed1fc | 653 | unsigned from, to; |
4ed46869 | 654 | |
374c5cfd KH |
655 | CHECK_CHARSET_GET_CHARSET (charset, cs); |
656 | if (NILP (from_code)) | |
16fed1fc | 657 | from = CHARSET_MIN_CODE (cs); |
970b7474 | 658 | else |
4ed46869 | 659 | { |
970b7474 KH |
660 | CHECK_NATNUM (from_code); |
661 | from = XINT (from_code); | |
662 | if (from < CHARSET_MIN_CODE (cs)) | |
663 | from = CHARSET_MIN_CODE (cs); | |
4ed46869 | 664 | } |
374c5cfd | 665 | if (NILP (to_code)) |
970b7474 | 666 | to = CHARSET_MAX_CODE (cs); |
4ed46869 KH |
667 | else |
668 | { | |
970b7474 KH |
669 | CHECK_NATNUM (to_code); |
670 | to = XINT (to_code); | |
671 | if (to > CHARSET_MAX_CODE (cs)) | |
672 | to = CHARSET_MAX_CODE (cs); | |
4ed46869 | 673 | } |
16fed1fc | 674 | map_charset_chars (NULL, function, arg, cs, from, to); |
3263d5a2 | 675 | return Qnil; |
35e623fb | 676 | } |
4ed46869 | 677 | |
4ed46869 | 678 | |
3263d5a2 KH |
679 | /* Define a charset according to the arguments. The Nth argument is |
680 | the Nth attribute of the charset (the last attribute `charset-id' | |
681 | is not included). See the docstring of `define-charset' for the | |
682 | detail. */ | |
4ed46869 | 683 | |
3263d5a2 KH |
684 | DEFUN ("define-charset-internal", Fdefine_charset_internal, |
685 | Sdefine_charset_internal, charset_arg_max, MANY, 0, | |
04c2f2c5 DL |
686 | doc: /* For internal use only. |
687 | usage: (define-charset-internal ...) */) | |
3263d5a2 KH |
688 | (nargs, args) |
689 | int nargs; | |
690 | Lisp_Object *args; | |
4ed46869 | 691 | { |
3263d5a2 KH |
692 | /* Charset attr vector. */ |
693 | Lisp_Object attrs; | |
694 | Lisp_Object val; | |
695 | unsigned hash_code; | |
696 | struct Lisp_Hash_Table *hash_table = XHASH_TABLE (Vcharset_hash_table); | |
69f8de5b | 697 | int i, j; |
3263d5a2 KH |
698 | struct charset charset; |
699 | int id; | |
700 | int dimension; | |
701 | int new_definition_p; | |
702 | int nchars; | |
703 | ||
704 | if (nargs != charset_arg_max) | |
705 | return Fsignal (Qwrong_number_of_arguments, | |
706 | Fcons (intern ("define-charset-internal"), | |
707 | make_number (nargs))); | |
708 | ||
709 | attrs = Fmake_vector (make_number (charset_attr_max), Qnil); | |
710 | ||
711 | CHECK_SYMBOL (args[charset_arg_name]); | |
712 | ASET (attrs, charset_name, args[charset_arg_name]); | |
713 | ||
714 | val = args[charset_arg_code_space]; | |
715 | for (i = 0, dimension = 0, nchars = 1; i < 4; i++) | |
76d7b829 | 716 | { |
3263d5a2 KH |
717 | int min_byte, max_byte; |
718 | ||
719 | min_byte = XINT (Faref (val, make_number (i * 2))); | |
720 | max_byte = XINT (Faref (val, make_number (i * 2 + 1))); | |
721 | if (min_byte < 0 || min_byte > max_byte || max_byte >= 256) | |
722 | error ("Invalid :code-space value"); | |
723 | charset.code_space[i * 4] = min_byte; | |
724 | charset.code_space[i * 4 + 1] = max_byte; | |
725 | charset.code_space[i * 4 + 2] = max_byte - min_byte + 1; | |
726 | nchars *= charset.code_space[i * 4 + 2]; | |
727 | charset.code_space[i * 4 + 3] = nchars; | |
728 | if (max_byte > 0) | |
729 | dimension = i + 1; | |
730 | } | |
4ed46869 | 731 | |
3263d5a2 KH |
732 | val = args[charset_arg_dimension]; |
733 | if (NILP (val)) | |
734 | charset.dimension = dimension; | |
735 | else | |
4ed46869 | 736 | { |
3263d5a2 KH |
737 | CHECK_NATNUM (val); |
738 | charset.dimension = XINT (val); | |
739 | if (charset.dimension < 1 || charset.dimension > 4) | |
740 | args_out_of_range_3 (val, make_number (1), make_number (4)); | |
4ed46869 KH |
741 | } |
742 | ||
3263d5a2 KH |
743 | charset.code_linear_p |
744 | = (charset.dimension == 1 | |
745 | || (charset.code_space[2] == 256 | |
746 | && (charset.dimension == 2 | |
747 | || (charset.code_space[6] == 256 | |
748 | && (charset.dimension == 3 | |
749 | || charset.code_space[10] == 256))))); | |
750 | ||
69f8de5b | 751 | if (! charset.code_linear_p) |
4ed46869 | 752 | { |
69f8de5b | 753 | charset.code_space_mask = (unsigned char *) xmalloc (256); |
33df3183 | 754 | bzero (charset.code_space_mask, 256); |
69f8de5b KH |
755 | for (i = 0; i < 4; i++) |
756 | for (j = charset.code_space[i * 4]; j <= charset.code_space[i * 4 + 1]; | |
757 | j++) | |
758 | charset.code_space_mask[j] |= (1 << i); | |
4ed46869 KH |
759 | } |
760 | ||
3263d5a2 | 761 | charset.iso_chars_96 = charset.code_space[2] == 96; |
4ed46869 | 762 | |
3263d5a2 KH |
763 | charset.min_code = (charset.code_space[0] |
764 | | (charset.code_space[4] << 8) | |
765 | | (charset.code_space[8] << 16) | |
766 | | (charset.code_space[12] << 24)); | |
767 | charset.max_code = (charset.code_space[1] | |
768 | | (charset.code_space[5] << 8) | |
769 | | (charset.code_space[9] << 16) | |
770 | | (charset.code_space[13] << 24)); | |
820ee249 | 771 | charset.char_index_offset = 0; |
8a73a704 | 772 | |
820ee249 KH |
773 | val = args[charset_arg_min_code]; |
774 | if (! NILP (val)) | |
775 | { | |
776 | unsigned code; | |
fdb82f93 | 777 | |
820ee249 KH |
778 | if (INTEGERP (val)) |
779 | code = XINT (val); | |
780 | else | |
781 | { | |
782 | CHECK_CONS (val); | |
8f924df7 KH |
783 | CHECK_NUMBER_CAR (val); |
784 | CHECK_NUMBER_CDR (val); | |
820ee249 KH |
785 | code = (XINT (XCAR (val)) << 16) | (XINT (XCDR (val))); |
786 | } | |
787 | if (code < charset.min_code | |
788 | || code > charset.max_code) | |
789 | args_out_of_range_3 (make_number (charset.min_code), | |
790 | make_number (charset.max_code), val); | |
791 | charset.char_index_offset = CODE_POINT_TO_INDEX (&charset, code); | |
792 | charset.min_code = code; | |
793 | } | |
3fac5a51 | 794 | |
820ee249 KH |
795 | val = args[charset_arg_max_code]; |
796 | if (! NILP (val)) | |
3fac5a51 | 797 | { |
820ee249 KH |
798 | unsigned code; |
799 | ||
800 | if (INTEGERP (val)) | |
801 | code = XINT (val); | |
802 | else | |
803 | { | |
804 | CHECK_CONS (val); | |
8f924df7 KH |
805 | CHECK_NUMBER_CAR (val); |
806 | CHECK_NUMBER_CDR (val); | |
820ee249 KH |
807 | code = (XINT (XCAR (val)) << 16) | (XINT (XCDR (val))); |
808 | } | |
809 | if (code < charset.min_code | |
810 | || code > charset.max_code) | |
811 | args_out_of_range_3 (make_number (charset.min_code), | |
812 | make_number (charset.max_code), val); | |
813 | charset.max_code = code; | |
3fac5a51 | 814 | } |
3fac5a51 | 815 | |
e9ce014c | 816 | charset.compact_codes_p = charset.max_code < 0x1000000; |
4ed46869 | 817 | |
3263d5a2 KH |
818 | val = args[charset_arg_invalid_code]; |
819 | if (NILP (val)) | |
820 | { | |
821 | if (charset.min_code > 0) | |
822 | charset.invalid_code = 0; | |
bbf12bb3 KH |
823 | else |
824 | { | |
3263d5a2 KH |
825 | XSETINT (val, charset.max_code + 1); |
826 | if (XINT (val) == charset.max_code + 1) | |
827 | charset.invalid_code = charset.max_code + 1; | |
828 | else | |
829 | error ("Attribute :invalid-code must be specified"); | |
76d7b829 | 830 | } |
76d7b829 | 831 | } |
3263d5a2 KH |
832 | else |
833 | { | |
834 | CHECK_NATNUM (val); | |
835 | charset.invalid_code = XFASTINT (val); | |
836 | } | |
4ed46869 | 837 | |
3263d5a2 KH |
838 | val = args[charset_arg_iso_final]; |
839 | if (NILP (val)) | |
840 | charset.iso_final = -1; | |
841 | else | |
842 | { | |
843 | CHECK_NUMBER (val); | |
844 | if (XINT (val) < '0' || XINT (val) > 127) | |
845 | error ("Invalid iso-final-char: %d", XINT (val)); | |
846 | charset.iso_final = XINT (val); | |
847 | } | |
4ed46869 | 848 | |
3263d5a2 KH |
849 | val = args[charset_arg_iso_revision]; |
850 | if (NILP (val)) | |
851 | charset.iso_revision = -1; | |
852 | else | |
4ed46869 | 853 | { |
3263d5a2 KH |
854 | CHECK_NUMBER (val); |
855 | if (XINT (val) > 63) | |
856 | args_out_of_range (make_number (63), val); | |
857 | charset.iso_revision = XINT (val); | |
4ed46869 | 858 | } |
4ed46869 | 859 | |
3263d5a2 KH |
860 | val = args[charset_arg_emacs_mule_id]; |
861 | if (NILP (val)) | |
862 | charset.emacs_mule_id = -1; | |
4ed46869 KH |
863 | else |
864 | { | |
3263d5a2 KH |
865 | CHECK_NATNUM (val); |
866 | if ((XINT (val) > 0 && XINT (val) <= 128) || XINT (val) >= 256) | |
867 | error ("Invalid emacs-mule-id: %d", XINT (val)); | |
868 | charset.emacs_mule_id = XINT (val); | |
c83ef371 | 869 | } |
f6302ac9 | 870 | |
3263d5a2 | 871 | charset.ascii_compatible_p = ! NILP (args[charset_arg_ascii_compatible_p]); |
1d67c29b | 872 | |
3263d5a2 | 873 | charset.supplementary_p = ! NILP (args[charset_arg_supplementary_p]); |
4ed46869 | 874 | |
3263d5a2 KH |
875 | charset.unified_p = 0; |
876 | ||
877 | bzero (charset.fast_map, sizeof (charset.fast_map)); | |
878 | ||
879 | if (! NILP (args[charset_arg_code_offset])) | |
880 | { | |
881 | val = args[charset_arg_code_offset]; | |
882 | CHECK_NUMBER (val); | |
883 | ||
884 | charset.method = CHARSET_METHOD_OFFSET; | |
885 | charset.code_offset = XINT (val); | |
886 | ||
887 | i = CODE_POINT_TO_INDEX (&charset, charset.min_code); | |
888 | charset.min_char = i + charset.code_offset; | |
889 | i = CODE_POINT_TO_INDEX (&charset, charset.max_code); | |
890 | charset.max_char = i + charset.code_offset; | |
891 | if (charset.max_char > MAX_CHAR) | |
892 | error ("Unsupported max char: %d", charset.max_char); | |
893 | ||
f148205f KH |
894 | i = (charset.min_char >> 7) << 7; |
895 | for (; i < 0x10000 && i <= charset.max_char; i += 128) | |
3263d5a2 | 896 | CHARSET_FAST_MAP_SET (i, charset.fast_map); |
f148205f | 897 | i = (i >> 12) << 12; |
3263d5a2 KH |
898 | for (; i <= charset.max_char; i += 0x1000) |
899 | CHARSET_FAST_MAP_SET (i, charset.fast_map); | |
900 | } | |
901 | else if (! NILP (args[charset_arg_map])) | |
902 | { | |
903 | val = args[charset_arg_map]; | |
904 | ASET (attrs, charset_map, val); | |
905 | if (STRINGP (val)) | |
e9ce014c KH |
906 | load_charset_map_from_file (&charset, val, 0); |
907 | else | |
908 | load_charset_map_from_vector (&charset, val, 0); | |
3263d5a2 KH |
909 | charset.method = CHARSET_METHOD_MAP_DEFERRED; |
910 | } | |
374c5cfd | 911 | else if (! NILP (args[charset_arg_subset])) |
3263d5a2 | 912 | { |
374c5cfd KH |
913 | Lisp_Object parent; |
914 | Lisp_Object parent_min_code, parent_max_code, parent_code_offset; | |
915 | struct charset *parent_charset; | |
916 | ||
917 | val = args[charset_arg_subset]; | |
918 | parent = Fcar (val); | |
919 | CHECK_CHARSET_GET_CHARSET (parent, parent_charset); | |
920 | parent_min_code = Fnth (make_number (1), val); | |
921 | CHECK_NATNUM (parent_min_code); | |
922 | parent_max_code = Fnth (make_number (2), val); | |
923 | CHECK_NATNUM (parent_max_code); | |
924 | parent_code_offset = Fnth (make_number (3), val); | |
925 | CHECK_NUMBER (parent_code_offset); | |
926 | val = Fmake_vector (make_number (4), Qnil); | |
927 | ASET (val, 0, make_number (parent_charset->id)); | |
928 | ASET (val, 1, parent_min_code); | |
929 | ASET (val, 2, parent_max_code); | |
930 | ASET (val, 3, parent_code_offset); | |
931 | ASET (attrs, charset_subset, val); | |
932 | ||
933 | charset.method = CHARSET_METHOD_SUBSET; | |
934 | /* Here, we just copy the parent's fast_map. It's not accurate, | |
935 | but at least it works for quickly detecting which character | |
936 | DOESN'T belong to this charset. */ | |
937 | for (i = 0; i < 190; i++) | |
938 | charset.fast_map[i] = parent_charset->fast_map[i]; | |
939 | ||
940 | /* We also copy these for parents. */ | |
941 | charset.min_char = parent_charset->min_char; | |
942 | charset.max_char = parent_charset->max_char; | |
943 | } | |
944 | else if (! NILP (args[charset_arg_superset])) | |
0282eb69 | 945 | { |
374c5cfd KH |
946 | val = args[charset_arg_superset]; |
947 | charset.method = CHARSET_METHOD_SUPERSET; | |
3263d5a2 | 948 | val = Fcopy_sequence (val); |
374c5cfd | 949 | ASET (attrs, charset_superset, val); |
3263d5a2 KH |
950 | |
951 | charset.min_char = MAX_CHAR; | |
952 | charset.max_char = 0; | |
953 | for (; ! NILP (val); val = Fcdr (val)) | |
0282eb69 | 954 | { |
3263d5a2 KH |
955 | Lisp_Object elt, car_part, cdr_part; |
956 | int this_id, offset; | |
957 | struct charset *this_charset; | |
2e344af3 | 958 | |
3263d5a2 KH |
959 | elt = Fcar (val); |
960 | if (CONSP (elt)) | |
2e344af3 | 961 | { |
3263d5a2 KH |
962 | car_part = XCAR (elt); |
963 | cdr_part = XCDR (elt); | |
964 | CHECK_CHARSET_GET_ID (car_part, this_id); | |
965 | CHECK_NUMBER (cdr_part); | |
966 | offset = XINT (cdr_part); | |
177c0ea7 | 967 | } |
3263d5a2 | 968 | else |
4ed46869 | 969 | { |
3263d5a2 KH |
970 | CHECK_CHARSET_GET_ID (elt, this_id); |
971 | offset = 0; | |
4ed46869 | 972 | } |
3263d5a2 KH |
973 | XSETCAR (val, Fcons (make_number (this_id), make_number (offset))); |
974 | ||
975 | this_charset = CHARSET_FROM_ID (this_id); | |
976 | if (charset.min_char > this_charset->min_char) | |
977 | charset.min_char = this_charset->min_char; | |
978 | if (charset.max_char < this_charset->max_char) | |
979 | charset.max_char = this_charset->max_char; | |
980 | for (i = 0; i < 190; i++) | |
981 | charset.fast_map[i] |= this_charset->fast_map[i]; | |
0282eb69 | 982 | } |
0282eb69 | 983 | } |
2e344af3 | 984 | else |
3263d5a2 | 985 | error ("None of :code-offset, :map, :parents are specified"); |
05505664 | 986 | |
3263d5a2 KH |
987 | val = args[charset_arg_unify_map]; |
988 | if (! NILP (val) && !STRINGP (val)) | |
989 | CHECK_VECTOR (val); | |
990 | ASET (attrs, charset_unify_map, val); | |
05505664 | 991 | |
3263d5a2 KH |
992 | CHECK_LIST (args[charset_arg_plist]); |
993 | ASET (attrs, charset_plist, args[charset_arg_plist]); | |
4ed46869 | 994 | |
3263d5a2 KH |
995 | charset.hash_index = hash_lookup (hash_table, args[charset_arg_name], |
996 | &hash_code); | |
997 | if (charset.hash_index >= 0) | |
998 | { | |
999 | new_definition_p = 0; | |
4f65af01 | 1000 | id = XFASTINT (CHARSET_SYMBOL_ID (args[charset_arg_name])); |
3263d5a2 KH |
1001 | HASH_VALUE (hash_table, charset.hash_index) = attrs; |
1002 | } | |
1a45ff10 | 1003 | else |
3263d5a2 KH |
1004 | { |
1005 | charset.hash_index = hash_put (hash_table, args[charset_arg_name], attrs, | |
1006 | hash_code); | |
1007 | if (charset_table_used == charset_table_size) | |
1008 | { | |
2fe1edd1 KH |
1009 | struct charset *new_table |
1010 | = (struct charset *) xmalloc (sizeof (struct charset) | |
1011 | * (charset_table_size + 16)); | |
1012 | bcopy (charset_table, new_table, | |
1013 | sizeof (struct charset) * charset_table_size); | |
1014 | charset_table_size += 16; | |
1015 | charset_table = new_table; | |
3263d5a2 KH |
1016 | } |
1017 | id = charset_table_used++; | |
3263d5a2 KH |
1018 | new_definition_p = 1; |
1019 | } | |
2e344af3 | 1020 | |
4f65af01 | 1021 | ASET (attrs, charset_id, make_number (id)); |
3263d5a2 KH |
1022 | charset.id = id; |
1023 | charset_table[id] = charset; | |
2e344af3 | 1024 | |
3263d5a2 | 1025 | if (charset.iso_final >= 0) |
4ed46869 | 1026 | { |
3263d5a2 KH |
1027 | ISO_CHARSET_TABLE (charset.dimension, charset.iso_chars_96, |
1028 | charset.iso_final) = id; | |
1029 | if (new_definition_p) | |
1030 | Viso_2022_charset_list = nconc2 (Viso_2022_charset_list, | |
1031 | Fcons (make_number (id), Qnil)); | |
7c7dceee KH |
1032 | if (ISO_CHARSET_TABLE (1, 0, 'J') == id) |
1033 | charset_jisx0201_roman = id; | |
1034 | else if (ISO_CHARSET_TABLE (2, 0, '@') == id) | |
1035 | charset_jisx0208_1978 = id; | |
1036 | else if (ISO_CHARSET_TABLE (2, 0, 'B') == id) | |
1037 | charset_jisx0208 = id; | |
4ed46869 | 1038 | } |
3263d5a2 KH |
1039 | |
1040 | if (charset.emacs_mule_id >= 0) | |
4ed46869 | 1041 | { |
3263d5a2 | 1042 | emacs_mule_charset[charset.emacs_mule_id] = CHARSET_FROM_ID (id); |
4f65af01 KH |
1043 | if (charset.emacs_mule_id < 0xA0) |
1044 | emacs_mule_bytes[charset.emacs_mule_id] = charset.dimension + 1; | |
3b1ae89b KH |
1045 | else |
1046 | emacs_mule_bytes[charset.emacs_mule_id] = charset.dimension + 2; | |
3263d5a2 KH |
1047 | if (new_definition_p) |
1048 | Vemacs_mule_charset_list = nconc2 (Vemacs_mule_charset_list, | |
1049 | Fcons (make_number (id), Qnil)); | |
4ed46869 KH |
1050 | } |
1051 | ||
3263d5a2 KH |
1052 | if (new_definition_p) |
1053 | { | |
1054 | Vcharset_list = Fcons (args[charset_arg_name], Vcharset_list); | |
8f924df7 | 1055 | Vcharset_ordered_list = nconc2 (Vcharset_ordered_list, |
3263d5a2 | 1056 | Fcons (make_number (id), Qnil)); |
dbbb237d | 1057 | charset_ordered_list_tick++; |
3263d5a2 | 1058 | } |
4ed46869 | 1059 | |
3263d5a2 | 1060 | return Qnil; |
4ed46869 KH |
1061 | } |
1062 | ||
2fe1edd1 KH |
1063 | |
1064 | /* Same as Fdefine_charset_internal but arguments are more convenient | |
1065 | to call from C (typically in syms_of_charset). This can define a | |
1066 | charset of `offset' method only. Return the ID of the new | |
1067 | charset. */ | |
1068 | ||
1069 | static int | |
1070 | define_charset_internal (name, dimension, code_space, min_code, max_code, | |
1071 | iso_final, iso_revision, emacs_mule_id, | |
7acf89e6 | 1072 | ascii_compatible, supplementary, |
2fe1edd1 KH |
1073 | code_offset) |
1074 | Lisp_Object name; | |
1075 | int dimension; | |
1076 | unsigned char *code_space; | |
1077 | unsigned min_code, max_code; | |
1078 | int iso_final, iso_revision, emacs_mule_id; | |
7acf89e6 | 1079 | int ascii_compatible, supplementary; |
2fe1edd1 KH |
1080 | int code_offset; |
1081 | { | |
1082 | Lisp_Object args[charset_arg_max]; | |
1083 | Lisp_Object plist[14]; | |
1084 | Lisp_Object val; | |
1085 | int i; | |
1086 | ||
1087 | args[charset_arg_name] = name; | |
1088 | args[charset_arg_dimension] = make_number (dimension); | |
1089 | val = Fmake_vector (make_number (8), make_number (0)); | |
1090 | for (i = 0; i < 8; i++) | |
1091 | ASET (val, i, make_number (code_space[i])); | |
1092 | args[charset_arg_code_space] = val; | |
1093 | args[charset_arg_min_code] = make_number (min_code); | |
1094 | args[charset_arg_max_code] = make_number (max_code); | |
1095 | args[charset_arg_iso_final] | |
1096 | = (iso_final < 0 ? Qnil : make_number (iso_final)); | |
1097 | args[charset_arg_iso_revision] = make_number (iso_revision); | |
1098 | args[charset_arg_emacs_mule_id] | |
1099 | = (emacs_mule_id < 0 ? Qnil : make_number (emacs_mule_id)); | |
1100 | args[charset_arg_ascii_compatible_p] = ascii_compatible ? Qt : Qnil; | |
7acf89e6 | 1101 | args[charset_arg_supplementary_p] = supplementary ? Qt : Qnil; |
2fe1edd1 KH |
1102 | args[charset_arg_invalid_code] = Qnil; |
1103 | args[charset_arg_code_offset] = make_number (code_offset); | |
1104 | args[charset_arg_map] = Qnil; | |
1105 | args[charset_arg_subset] = Qnil; | |
1106 | args[charset_arg_superset] = Qnil; | |
1107 | args[charset_arg_unify_map] = Qnil; | |
1108 | ||
1109 | plist[0] = intern (":name"); | |
1110 | plist[1] = args[charset_arg_name]; | |
1111 | plist[2] = intern (":dimension"); | |
1112 | plist[3] = args[charset_arg_dimension]; | |
1113 | plist[4] = intern (":code-space"); | |
1114 | plist[5] = args[charset_arg_code_space]; | |
1115 | plist[6] = intern (":iso-final-char"); | |
1116 | plist[7] = args[charset_arg_iso_final]; | |
1117 | plist[8] = intern (":emacs-mule-id"); | |
1118 | plist[9] = args[charset_arg_emacs_mule_id]; | |
1119 | plist[10] = intern (":ascii-compatible-p"); | |
1120 | plist[11] = args[charset_arg_ascii_compatible_p]; | |
1121 | plist[12] = intern (":code-offset"); | |
1122 | plist[13] = args[charset_arg_code_offset]; | |
1123 | ||
1124 | args[charset_arg_plist] = Flist (14, plist); | |
1125 | Fdefine_charset_internal (charset_arg_max, args); | |
1126 | ||
1127 | return XINT (CHARSET_SYMBOL_ID (name)); | |
1128 | } | |
1129 | ||
1130 | ||
3263d5a2 KH |
1131 | DEFUN ("define-charset-alias", Fdefine_charset_alias, |
1132 | Sdefine_charset_alias, 2, 2, 0, | |
1133 | doc: /* Define ALIAS as an alias for charset CHARSET. */) | |
1134 | (alias, charset) | |
1135 | Lisp_Object alias, charset; | |
4ed46869 | 1136 | { |
3263d5a2 KH |
1137 | Lisp_Object attr; |
1138 | ||
1139 | CHECK_CHARSET_GET_ATTR (charset, attr); | |
1140 | Fputhash (alias, attr, Vcharset_hash_table); | |
528623a0 | 1141 | Vcharset_list = Fcons (alias, Vcharset_list); |
3263d5a2 KH |
1142 | return Qnil; |
1143 | } | |
4ed46869 | 1144 | |
4ed46869 | 1145 | |
d1a04588 KH |
1146 | DEFUN ("unibyte-charset", Funibyte_charset, Sunibyte_charset, 0, 0, 0, |
1147 | doc: /* Return the unibyte charset (set by `set-unibyte-charset'). */) | |
3263d5a2 KH |
1148 | () |
1149 | { | |
d1a04588 | 1150 | return CHARSET_NAME (CHARSET_FROM_ID (charset_unibyte)); |
3263d5a2 | 1151 | } |
4ed46869 | 1152 | |
4ed46869 | 1153 | |
d1a04588 | 1154 | DEFUN ("set-unibyte-charset", Fset_unibyte_charset, Sset_unibyte_charset, |
3263d5a2 | 1155 | 1, 1, 0, |
d1a04588 | 1156 | doc: /* Set the unibyte charset to CHARSET. |
56a46d1d | 1157 | This determines how unibyte/multibyte conversion is done. See also |
d1a04588 | 1158 | function `unibyte-charset'. */) |
3263d5a2 KH |
1159 | (charset) |
1160 | Lisp_Object charset; | |
1161 | { | |
14e3d523 KH |
1162 | struct charset *cs; |
1163 | int i, c; | |
1164 | ||
1165 | CHECK_CHARSET_GET_CHARSET (charset, cs); | |
1166 | if (! cs->ascii_compatible_p | |
1167 | || cs->dimension != 1) | |
8f924df7 | 1168 | error ("Inappropriate unibyte charset: %s", SDATA (SYMBOL_NAME (charset))); |
14e3d523 | 1169 | charset_unibyte = cs->id; |
943a83ad | 1170 | memset (unibyte_has_multibyte_table, 1, 128); |
14e3d523 KH |
1171 | for (i = 128; i < 256; i++) |
1172 | { | |
1173 | c = DECODE_CHAR (cs, i); | |
170e4589 | 1174 | unibyte_to_multibyte_table[i] = (c < 0 ? BYTE8_TO_CHAR (i) : c); |
943a83ad | 1175 | unibyte_has_multibyte_table[i] = c >= 0; |
14e3d523 | 1176 | } |
3263d5a2 | 1177 | |
4ed46869 KH |
1178 | return Qnil; |
1179 | } | |
1180 | ||
3263d5a2 KH |
1181 | |
1182 | DEFUN ("charset-plist", Fcharset_plist, Scharset_plist, 1, 1, 0, | |
56a46d1d | 1183 | doc: /* Return the property list of CHARSET. */) |
3263d5a2 KH |
1184 | (charset) |
1185 | Lisp_Object charset; | |
1186 | { | |
1187 | Lisp_Object attrs; | |
1188 | ||
1189 | CHECK_CHARSET_GET_ATTR (charset, attrs); | |
1190 | return CHARSET_ATTR_PLIST (attrs); | |
1191 | } | |
1192 | ||
1193 | ||
1194 | DEFUN ("set-charset-plist", Fset_charset_plist, Sset_charset_plist, 2, 2, 0, | |
1195 | doc: /* Set CHARSET's property list to PLIST. */) | |
1196 | (charset, plist) | |
1197 | Lisp_Object charset, plist; | |
1198 | { | |
1199 | Lisp_Object attrs; | |
1200 | ||
1201 | CHECK_CHARSET_GET_ATTR (charset, attrs); | |
1202 | CHARSET_ATTR_PLIST (attrs) = plist; | |
1203 | return plist; | |
1204 | } | |
1205 | ||
1206 | ||
dbbb237d | 1207 | DEFUN ("unify-charset", Funify_charset, Sunify_charset, 1, 3, 0, |
56a46d1d DL |
1208 | doc: /* Unify characters of CHARSET with Unicode. |
1209 | This means reading the relevant file and installing the table defined | |
dbbb237d KH |
1210 | by CHARSET's `:unify-map' property. |
1211 | ||
64165ae2 DL |
1212 | Optional second arg UNIFY-MAP is a file name string or a vector. It has |
1213 | the same meaning as the `:unify-map' attribute in the function | |
dbbb237d KH |
1214 | `define-charset' (which see). |
1215 | ||
1216 | Optional third argument DEUNIFY, if non-nil, means to de-unify CHARSET. */) | |
1217 | (charset, unify_map, deunify) | |
1218 | Lisp_Object charset, unify_map, deunify; | |
8a73a704 | 1219 | { |
3263d5a2 KH |
1220 | int id; |
1221 | struct charset *cs; | |
8f924df7 | 1222 | |
3263d5a2 KH |
1223 | CHECK_CHARSET_GET_ID (charset, id); |
1224 | cs = CHARSET_FROM_ID (id); | |
1225 | if (CHARSET_METHOD (cs) == CHARSET_METHOD_MAP_DEFERRED) | |
1226 | load_charset (cs); | |
dbbb237d KH |
1227 | if (NILP (deunify) |
1228 | ? CHARSET_UNIFIED_P (cs) && ! NILP (CHARSET_DEUNIFIER (cs)) | |
1229 | : ! CHARSET_UNIFIED_P (cs)) | |
3263d5a2 | 1230 | return Qnil; |
dbbb237d | 1231 | |
3263d5a2 | 1232 | CHARSET_UNIFIED_P (cs) = 0; |
dbbb237d KH |
1233 | if (NILP (deunify)) |
1234 | { | |
1235 | if (CHARSET_METHOD (cs) != CHARSET_METHOD_OFFSET) | |
8f924df7 | 1236 | error ("Can't unify charset: %s", SDATA (SYMBOL_NAME (charset))); |
dbbb237d KH |
1237 | if (NILP (unify_map)) |
1238 | unify_map = CHARSET_UNIFY_MAP (cs); | |
1239 | if (STRINGP (unify_map)) | |
1240 | load_charset_map_from_file (cs, unify_map, 2); | |
1241 | else if (VECTORP (unify_map)) | |
1242 | load_charset_map_from_vector (cs, unify_map, 2); | |
1243 | else if (NILP (unify_map)) | |
1244 | error ("No unify-map for charset"); | |
1245 | else | |
1246 | error ("Bad unify-map arg"); | |
1247 | CHARSET_UNIFIED_P (cs) = 1; | |
1248 | } | |
1249 | else if (CHAR_TABLE_P (Vchar_unify_table)) | |
1250 | { | |
1251 | int min_code = CHARSET_MIN_CODE (cs); | |
1252 | int max_code = CHARSET_MAX_CODE (cs); | |
1253 | int min_char = DECODE_CHAR (cs, min_code); | |
1254 | int max_char = DECODE_CHAR (cs, max_code); | |
8f924df7 | 1255 | |
dbbb237d KH |
1256 | char_table_set_range (Vchar_unify_table, min_char, max_char, Qnil); |
1257 | } | |
8f924df7 | 1258 | |
3263d5a2 | 1259 | return Qnil; |
8a73a704 KH |
1260 | } |
1261 | ||
3fac5a51 KH |
1262 | DEFUN ("get-unused-iso-final-char", Fget_unused_iso_final_char, |
1263 | Sget_unused_iso_final_char, 2, 2, 0, | |
3263d5a2 | 1264 | doc: /* |
327719ee | 1265 | Return an unused ISO final char for a charset of DIMENISION and CHARS. |
fdb82f93 PJ |
1266 | DIMENSION is the number of bytes to represent a character: 1 or 2. |
1267 | CHARS is the number of characters in a dimension: 94 or 96. | |
1268 | ||
1269 | This final char is for private use, thus the range is `0' (48) .. `?' (63). | |
1721b6af | 1270 | If there's no unused final char for the specified kind of charset, |
fdb82f93 PJ |
1271 | return nil. */) |
1272 | (dimension, chars) | |
3fac5a51 KH |
1273 | Lisp_Object dimension, chars; |
1274 | { | |
1275 | int final_char; | |
1276 | ||
b7826503 PJ |
1277 | CHECK_NUMBER (dimension); |
1278 | CHECK_NUMBER (chars); | |
3263d5a2 KH |
1279 | if (XINT (dimension) != 1 && XINT (dimension) != 2 && XINT (dimension) != 3) |
1280 | args_out_of_range_3 (dimension, make_number (1), make_number (3)); | |
3fac5a51 | 1281 | if (XINT (chars) != 94 && XINT (chars) != 96) |
3263d5a2 | 1282 | args_out_of_range_3 (chars, make_number (94), make_number (96)); |
3fac5a51 | 1283 | for (final_char = '0'; final_char <= '?'; final_char++) |
3263d5a2 KH |
1284 | if (ISO_CHARSET_TABLE (XINT (dimension), XINT (chars), final_char) < 0) |
1285 | break; | |
3fac5a51 KH |
1286 | return (final_char <= '?' ? make_number (final_char) : Qnil); |
1287 | } | |
1288 | ||
3263d5a2 KH |
1289 | static void |
1290 | check_iso_charset_parameter (dimension, chars, final_char) | |
1291 | Lisp_Object dimension, chars, final_char; | |
4ed46869 | 1292 | { |
3263d5a2 KH |
1293 | CHECK_NATNUM (dimension); |
1294 | CHECK_NATNUM (chars); | |
1295 | CHECK_NATNUM (final_char); | |
4ed46869 | 1296 | |
3263d5a2 KH |
1297 | if (XINT (dimension) > 3) |
1298 | error ("Invalid DIMENSION %d, it should be 1, 2, or 3", XINT (dimension)); | |
4ed46869 KH |
1299 | if (XINT (chars) != 94 && XINT (chars) != 96) |
1300 | error ("Invalid CHARS %d, it should be 94 or 96", XINT (chars)); | |
3263d5a2 | 1301 | if (XINT (final_char) < '0' || XINT (final_char) > '~') |
4ed46869 | 1302 | error ("Invalid FINAL-CHAR %c, it should be `0'..`~'", XINT (chars)); |
3263d5a2 KH |
1303 | } |
1304 | ||
1305 | ||
1306 | DEFUN ("declare-equiv-charset", Fdeclare_equiv_charset, Sdeclare_equiv_charset, | |
1307 | 4, 4, 0, | |
cefd8c4f KH |
1308 | doc: /* Declare an equivalent charset for ISO-2022 decoding. |
1309 | ||
1310 | On decoding by an ISO-2022 base coding system, when a charset | |
1311 | specified by DIMENSION, CHARS, and FINAL-CHAR is designated, behave as | |
1312 | if CHARSET is designated instead. */) | |
3263d5a2 KH |
1313 | (dimension, chars, final_char, charset) |
1314 | Lisp_Object dimension, chars, final_char, charset; | |
1315 | { | |
1316 | int id; | |
82215ce9 | 1317 | int chars_flag; |
4ed46869 | 1318 | |
3263d5a2 KH |
1319 | CHECK_CHARSET_GET_ID (charset, id); |
1320 | check_iso_charset_parameter (dimension, chars, final_char); | |
82215ce9 KH |
1321 | chars_flag = XINT (chars) == 96; |
1322 | ISO_CHARSET_TABLE (XINT (dimension), chars_flag, XINT (final_char)) = id; | |
4ed46869 KH |
1323 | return Qnil; |
1324 | } | |
1325 | ||
3263d5a2 | 1326 | |
2e344af3 KH |
1327 | /* Return information about charsets in the text at PTR of NBYTES |
1328 | bytes, which are NCHARS characters. The value is: | |
f6302ac9 | 1329 | |
cfe34140 | 1330 | 0: Each character is represented by one byte. This is always |
3263d5a2 KH |
1331 | true for a unibyte string. For a multibyte string, true if |
1332 | it contains only ASCII characters. | |
1333 | ||
28c026cd DL |
1334 | 1: No charsets other than ascii, control-1, and latin-1 are |
1335 | found. | |
1d67c29b | 1336 | |
3263d5a2 KH |
1337 | 2: Otherwise. |
1338 | */ | |
4ed46869 KH |
1339 | |
1340 | int | |
3263d5a2 KH |
1341 | string_xstring_p (string) |
1342 | Lisp_Object string; | |
4ed46869 | 1343 | { |
8f924df7 KH |
1344 | const unsigned char *p = SDATA (string); |
1345 | const unsigned char *endp = p + SBYTES (string); | |
3263d5a2 | 1346 | |
8f924df7 | 1347 | if (SCHARS (string) == SBYTES (string)) |
3263d5a2 KH |
1348 | return 0; |
1349 | ||
3263d5a2 | 1350 | while (p < endp) |
0282eb69 | 1351 | { |
3263d5a2 | 1352 | int c = STRING_CHAR_ADVANCE (p); |
2e344af3 | 1353 | |
3cc67a4d | 1354 | if (c >= 0x100) |
3263d5a2 | 1355 | return 2; |
0282eb69 | 1356 | } |
3263d5a2 KH |
1357 | return 1; |
1358 | } | |
05505664 | 1359 | |
05505664 | 1360 | |
3263d5a2 | 1361 | /* Find charsets in the string at PTR of NCHARS and NBYTES. |
4ed46869 | 1362 | |
3cc67a4d KH |
1363 | CHARSETS is a vector. If Nth element is non-nil, it means the |
1364 | charset whose id is N is already found. | |
2e344af3 | 1365 | |
3263d5a2 | 1366 | It may lookup a translation table TABLE if supplied. */ |
2e344af3 | 1367 | |
3263d5a2 | 1368 | static void |
3cc67a4d | 1369 | find_charsets_in_text (ptr, nchars, nbytes, charsets, table, multibyte) |
dbbb237d | 1370 | const unsigned char *ptr; |
42ca828e | 1371 | EMACS_INT nchars, nbytes; |
3263d5a2 | 1372 | Lisp_Object charsets, table; |
3cc67a4d | 1373 | int multibyte; |
3263d5a2 | 1374 | { |
dbbb237d | 1375 | const unsigned char *pend = ptr + nbytes; |
3263d5a2 KH |
1376 | |
1377 | if (nchars == nbytes) | |
3263d5a2 | 1378 | { |
3cc67a4d KH |
1379 | if (multibyte) |
1380 | ASET (charsets, charset_ascii, Qt); | |
1381 | else | |
1382 | while (ptr < pend) | |
1383 | { | |
1384 | int c = *ptr++; | |
1385 | ||
1386 | if (!NILP (table)) | |
1387 | c = translate_char (table, c); | |
1388 | if (ASCII_BYTE_P (c)) | |
1389 | ASET (charsets, charset_ascii, Qt); | |
1390 | else | |
1391 | ASET (charsets, charset_eight_bit, Qt); | |
1392 | } | |
1393 | } | |
1394 | else | |
1395 | { | |
1396 | while (ptr < pend) | |
3263d5a2 | 1397 | { |
3cc67a4d KH |
1398 | int c = STRING_CHAR_ADVANCE (ptr); |
1399 | struct charset *charset; | |
3263d5a2 | 1400 | |
3cc67a4d KH |
1401 | if (!NILP (table)) |
1402 | c = translate_char (table, c); | |
1403 | charset = CHAR_CHARSET (c); | |
1404 | ASET (charsets, CHARSET_ID (charset), Qt); | |
4ed46869 | 1405 | } |
4ed46869 | 1406 | } |
4ed46869 KH |
1407 | } |
1408 | ||
1409 | DEFUN ("find-charset-region", Ffind_charset_region, Sfind_charset_region, | |
23d2a7f1 | 1410 | 2, 3, 0, |
fdb82f93 PJ |
1411 | doc: /* Return a list of charsets in the region between BEG and END. |
1412 | BEG and END are buffer positions. | |
1413 | Optional arg TABLE if non-nil is a translation table to look up. | |
1414 | ||
fdb82f93 PJ |
1415 | If the current buffer is unibyte, the returned list may contain |
1416 | only `ascii', `eight-bit-control', and `eight-bit-graphic'. */) | |
1417 | (beg, end, table) | |
23d2a7f1 | 1418 | Lisp_Object beg, end, table; |
4ed46869 | 1419 | { |
3263d5a2 | 1420 | Lisp_Object charsets; |
42ca828e DL |
1421 | EMACS_INT from, from_byte, to, stop, stop_byte; |
1422 | int i; | |
4ed46869 | 1423 | Lisp_Object val; |
3cc67a4d | 1424 | int multibyte = ! NILP (current_buffer->enable_multibyte_characters); |
4ed46869 KH |
1425 | |
1426 | validate_region (&beg, &end); | |
1427 | from = XFASTINT (beg); | |
1428 | stop = to = XFASTINT (end); | |
6ae1f27e | 1429 | |
4ed46869 | 1430 | if (from < GPT && GPT < to) |
6ae1f27e RS |
1431 | { |
1432 | stop = GPT; | |
1433 | stop_byte = GPT_BYTE; | |
1434 | } | |
1435 | else | |
1436 | stop_byte = CHAR_TO_BYTE (stop); | |
1437 | ||
1438 | from_byte = CHAR_TO_BYTE (from); | |
1439 | ||
3263d5a2 | 1440 | charsets = Fmake_vector (make_number (charset_table_used), Qnil); |
4ed46869 KH |
1441 | while (1) |
1442 | { | |
3263d5a2 | 1443 | find_charsets_in_text (BYTE_POS_ADDR (from_byte), stop - from, |
3cc67a4d KH |
1444 | stop_byte - from_byte, charsets, table, |
1445 | multibyte); | |
4ed46869 | 1446 | if (stop < to) |
6ae1f27e RS |
1447 | { |
1448 | from = stop, from_byte = stop_byte; | |
1449 | stop = to, stop_byte = CHAR_TO_BYTE (stop); | |
1450 | } | |
4ed46869 KH |
1451 | else |
1452 | break; | |
1453 | } | |
6ae1f27e | 1454 | |
4ed46869 | 1455 | val = Qnil; |
3263d5a2 | 1456 | for (i = charset_table_used - 1; i >= 0; i--) |
3cc67a4d | 1457 | if (!NILP (AREF (charsets, i))) |
3263d5a2 | 1458 | val = Fcons (CHARSET_NAME (charset_table + i), val); |
4ed46869 KH |
1459 | return val; |
1460 | } | |
1461 | ||
1462 | DEFUN ("find-charset-string", Ffind_charset_string, Sfind_charset_string, | |
23d2a7f1 | 1463 | 1, 2, 0, |
fdb82f93 PJ |
1464 | doc: /* Return a list of charsets in STR. |
1465 | Optional arg TABLE if non-nil is a translation table to look up. | |
1466 | ||
fdb82f93 | 1467 | If STR is unibyte, the returned list may contain |
3263d5a2 | 1468 | only `ascii', `eight-bit-control', and `eight-bit-graphic'. */) |
fdb82f93 | 1469 | (str, table) |
23d2a7f1 | 1470 | Lisp_Object str, table; |
4ed46869 | 1471 | { |
3263d5a2 | 1472 | Lisp_Object charsets; |
4ed46869 KH |
1473 | int i; |
1474 | Lisp_Object val; | |
1475 | ||
b7826503 | 1476 | CHECK_STRING (str); |
87b089ad | 1477 | |
3263d5a2 | 1478 | charsets = Fmake_vector (make_number (charset_table_used), Qnil); |
8f924df7 | 1479 | find_charsets_in_text (SDATA (str), SCHARS (str), SBYTES (str), |
3cc67a4d KH |
1480 | charsets, table, |
1481 | STRING_MULTIBYTE (str)); | |
4ed46869 | 1482 | val = Qnil; |
3263d5a2 | 1483 | for (i = charset_table_used - 1; i >= 0; i--) |
3cc67a4d | 1484 | if (!NILP (AREF (charsets, i))) |
3263d5a2 | 1485 | val = Fcons (CHARSET_NAME (charset_table + i), val); |
4ed46869 KH |
1486 | return val; |
1487 | } | |
2e344af3 | 1488 | |
4ed46869 | 1489 | \f |
3263d5a2 KH |
1490 | |
1491 | /* Return a character correponding to the code-point CODE of | |
1492 | CHARSET. */ | |
1493 | ||
1494 | int | |
1495 | decode_char (charset, code) | |
1496 | struct charset *charset; | |
1497 | unsigned code; | |
4ed46869 | 1498 | { |
3263d5a2 KH |
1499 | int c, char_index; |
1500 | enum charset_method method = CHARSET_METHOD (charset); | |
ac4137cc | 1501 | |
3263d5a2 KH |
1502 | if (code < CHARSET_MIN_CODE (charset) || code > CHARSET_MAX_CODE (charset)) |
1503 | return -1; | |
4ed46869 | 1504 | |
3263d5a2 | 1505 | if (method == CHARSET_METHOD_MAP_DEFERRED) |
ac4137cc | 1506 | { |
3263d5a2 KH |
1507 | load_charset (charset); |
1508 | method = CHARSET_METHOD (charset); | |
ac4137cc | 1509 | } |
4ed46869 | 1510 | |
374c5cfd | 1511 | if (method == CHARSET_METHOD_SUBSET) |
2e344af3 | 1512 | { |
374c5cfd KH |
1513 | Lisp_Object subset_info; |
1514 | ||
1515 | subset_info = CHARSET_SUBSET (charset); | |
1516 | charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
1517 | code -= XINT (AREF (subset_info, 3)); | |
1518 | if (code < XFASTINT (AREF (subset_info, 1)) | |
1519 | || code > XFASTINT (AREF (subset_info, 2))) | |
1520 | c = -1; | |
1521 | else | |
1522 | c = DECODE_CHAR (charset, code); | |
2e344af3 | 1523 | } |
374c5cfd | 1524 | else if (method == CHARSET_METHOD_SUPERSET) |
2e344af3 | 1525 | { |
3263d5a2 | 1526 | Lisp_Object parents; |
4ed46869 | 1527 | |
374c5cfd | 1528 | parents = CHARSET_SUPERSET (charset); |
3263d5a2 KH |
1529 | c = -1; |
1530 | for (; CONSP (parents); parents = XCDR (parents)) | |
1531 | { | |
1532 | int id = XINT (XCAR (XCAR (parents))); | |
1533 | int code_offset = XINT (XCDR (XCAR (parents))); | |
374c5cfd | 1534 | unsigned this_code = code - code_offset; |
4ed46869 | 1535 | |
3263d5a2 KH |
1536 | charset = CHARSET_FROM_ID (id); |
1537 | if ((c = DECODE_CHAR (charset, this_code)) >= 0) | |
1538 | break; | |
1539 | } | |
1540 | } | |
1541 | else | |
ac4137cc | 1542 | { |
3263d5a2 | 1543 | char_index = CODE_POINT_TO_INDEX (charset, code); |
69f8de5b KH |
1544 | if (char_index < 0) |
1545 | return -1; | |
4ed46869 | 1546 | |
3263d5a2 | 1547 | if (method == CHARSET_METHOD_MAP) |
ac4137cc | 1548 | { |
3263d5a2 | 1549 | Lisp_Object decoder; |
4ed46869 | 1550 | |
3263d5a2 KH |
1551 | decoder = CHARSET_DECODER (charset); |
1552 | if (! VECTORP (decoder)) | |
1553 | return -1; | |
1554 | c = XINT (AREF (decoder, char_index)); | |
ac4137cc KH |
1555 | } |
1556 | else | |
1557 | { | |
3263d5a2 | 1558 | c = char_index + CHARSET_CODE_OFFSET (charset); |
ac4137cc KH |
1559 | } |
1560 | } | |
4ed46869 | 1561 | |
3263d5a2 KH |
1562 | if (CHARSET_UNIFIED_P (charset) |
1563 | && c >= 0) | |
c449997d KH |
1564 | { |
1565 | MAYBE_UNIFY_CHAR (c); | |
1566 | } | |
ac4137cc | 1567 | |
3263d5a2 | 1568 | return c; |
90d7b74e KH |
1569 | } |
1570 | ||
374c5cfd KH |
1571 | /* Variable used temporarily by the macro ENCODE_CHAR. */ |
1572 | Lisp_Object charset_work; | |
4ed46869 | 1573 | |
3263d5a2 | 1574 | /* Return a code-point of CHAR in CHARSET. If CHAR doesn't belong to |
28c026cd DL |
1575 | CHARSET, return CHARSET_INVALID_CODE (CHARSET). If STRICT is true, |
1576 | use CHARSET's strict_max_char instead of max_char. */ | |
4ed46869 | 1577 | |
3263d5a2 KH |
1578 | unsigned |
1579 | encode_char (charset, c) | |
1580 | struct charset *charset; | |
9b6a601f | 1581 | int c; |
9d3d8cba | 1582 | { |
3263d5a2 KH |
1583 | unsigned code; |
1584 | enum charset_method method = CHARSET_METHOD (charset); | |
9d3d8cba | 1585 | |
3263d5a2 | 1586 | if (CHARSET_UNIFIED_P (charset)) |
ac4137cc | 1587 | { |
374c5cfd | 1588 | Lisp_Object deunifier, deunified; |
4ed46869 | 1589 | |
3263d5a2 KH |
1590 | deunifier = CHARSET_DEUNIFIER (charset); |
1591 | if (! CHAR_TABLE_P (deunifier)) | |
ac4137cc | 1592 | { |
dbbb237d | 1593 | Funify_charset (CHARSET_NAME (charset), Qnil, Qnil); |
3263d5a2 | 1594 | deunifier = CHARSET_DEUNIFIER (charset); |
ac4137cc | 1595 | } |
374c5cfd KH |
1596 | deunified = CHAR_TABLE_REF (deunifier, c); |
1597 | if (! NILP (deunified)) | |
1598 | c = XINT (deunified); | |
ac4137cc | 1599 | } |
9d3d8cba | 1600 | |
374c5cfd KH |
1601 | if (method == CHARSET_METHOD_SUBSET) |
1602 | { | |
1603 | Lisp_Object subset_info; | |
1604 | struct charset *this_charset; | |
1605 | ||
1606 | subset_info = CHARSET_SUBSET (charset); | |
1607 | this_charset = CHARSET_FROM_ID (XFASTINT (AREF (subset_info, 0))); | |
1608 | code = ENCODE_CHAR (this_charset, c); | |
1609 | if (code == CHARSET_INVALID_CODE (this_charset) | |
1610 | || code < XFASTINT (AREF (subset_info, 1)) | |
1611 | || code > XFASTINT (AREF (subset_info, 2))) | |
1612 | return CHARSET_INVALID_CODE (charset); | |
1613 | code += XINT (AREF (subset_info, 3)); | |
1614 | return code; | |
1615 | } | |
9d3d8cba | 1616 | |
374c5cfd | 1617 | if (method == CHARSET_METHOD_SUPERSET) |
859f2b3c | 1618 | { |
3263d5a2 | 1619 | Lisp_Object parents; |
d2665018 | 1620 | |
374c5cfd | 1621 | parents = CHARSET_SUPERSET (charset); |
3263d5a2 | 1622 | for (; CONSP (parents); parents = XCDR (parents)) |
beeedaad | 1623 | { |
3263d5a2 KH |
1624 | int id = XINT (XCAR (XCAR (parents))); |
1625 | int code_offset = XINT (XCDR (XCAR (parents))); | |
1626 | struct charset *this_charset = CHARSET_FROM_ID (id); | |
d2665018 | 1627 | |
3263d5a2 | 1628 | code = ENCODE_CHAR (this_charset, c); |
dbbb237d KH |
1629 | if (code != CHARSET_INVALID_CODE (this_charset)) |
1630 | return code + code_offset; | |
beeedaad | 1631 | } |
3263d5a2 KH |
1632 | return CHARSET_INVALID_CODE (charset); |
1633 | } | |
1bcc1567 | 1634 | |
15c85a88 KH |
1635 | if (! CHARSET_FAST_MAP_REF ((c), charset->fast_map) |
1636 | || c < CHARSET_MIN_CHAR (charset) || c > CHARSET_MAX_CHAR (charset)) | |
1637 | return CHARSET_INVALID_CODE (charset); | |
1bcc1567 | 1638 | |
3263d5a2 | 1639 | if (method == CHARSET_METHOD_MAP_DEFERRED) |
beeedaad | 1640 | { |
3263d5a2 KH |
1641 | load_charset (charset); |
1642 | method = CHARSET_METHOD (charset); | |
859f2b3c | 1643 | } |
9b6a601f | 1644 | |
3263d5a2 | 1645 | if (method == CHARSET_METHOD_MAP) |
3f62427c | 1646 | { |
3263d5a2 | 1647 | Lisp_Object encoder; |
beeedaad | 1648 | Lisp_Object val; |
9b6a601f | 1649 | |
3263d5a2 KH |
1650 | encoder = CHARSET_ENCODER (charset); |
1651 | if (! CHAR_TABLE_P (CHARSET_ENCODER (charset))) | |
1652 | return CHARSET_INVALID_CODE (charset); | |
1653 | val = CHAR_TABLE_REF (encoder, c); | |
374c5cfd KH |
1654 | if (NILP (val)) |
1655 | return CHARSET_INVALID_CODE (charset); | |
e9ce014c KH |
1656 | code = XINT (val); |
1657 | if (! CHARSET_COMPACT_CODES_P (charset)) | |
1658 | code = INDEX_TO_CODE_POINT (charset, code); | |
3263d5a2 | 1659 | } |
820ee249 | 1660 | else /* method == CHARSET_METHOD_OFFSET */ |
beeedaad | 1661 | { |
3263d5a2 KH |
1662 | code = c - CHARSET_CODE_OFFSET (charset); |
1663 | code = INDEX_TO_CODE_POINT (charset, code); | |
3f62427c | 1664 | } |
8ac5a9cc | 1665 | |
3263d5a2 | 1666 | return code; |
4ed46869 KH |
1667 | } |
1668 | ||
4ed46869 | 1669 | |
3263d5a2 KH |
1670 | DEFUN ("decode-char", Fdecode_char, Sdecode_char, 2, 3, 0, |
1671 | doc: /* Decode the pair of CHARSET and CODE-POINT into a character. | |
1672 | Return nil if CODE-POINT is not valid in CHARSET. | |
4ed46869 | 1673 | |
3263d5a2 | 1674 | CODE-POINT may be a cons (HIGHER-16-BIT-VALUE . LOWER-16-BIT-VALUE). |
859f2b3c | 1675 | |
3263d5a2 KH |
1676 | Optional argument RESTRICTION specifies a way to map the pair of CCS |
1677 | and CODE-POINT to a chracter. Currently not supported and just ignored. */) | |
1678 | (charset, code_point, restriction) | |
1679 | Lisp_Object charset, code_point, restriction; | |
4ed46869 | 1680 | { |
3263d5a2 KH |
1681 | int c, id; |
1682 | unsigned code; | |
1683 | struct charset *charsetp; | |
859f2b3c | 1684 | |
3263d5a2 KH |
1685 | CHECK_CHARSET_GET_ID (charset, id); |
1686 | if (CONSP (code_point)) | |
1687 | { | |
8f924df7 KH |
1688 | CHECK_NATNUM_CAR (code_point); |
1689 | CHECK_NATNUM_CDR (code_point); | |
69f8de5b | 1690 | code = (XINT (XCAR (code_point)) << 16) | (XINT (XCDR (code_point))); |
3263d5a2 | 1691 | } |
4ed46869 KH |
1692 | else |
1693 | { | |
3263d5a2 KH |
1694 | CHECK_NATNUM (code_point); |
1695 | code = XINT (code_point); | |
4ed46869 | 1696 | } |
3263d5a2 KH |
1697 | charsetp = CHARSET_FROM_ID (id); |
1698 | c = DECODE_CHAR (charsetp, code); | |
1699 | return (c >= 0 ? make_number (c) : Qnil); | |
4ed46869 KH |
1700 | } |
1701 | ||
859f2b3c | 1702 | |
3263d5a2 KH |
1703 | DEFUN ("encode-char", Fencode_char, Sencode_char, 2, 3, 0, |
1704 | doc: /* Encode the character CH into a code-point of CHARSET. | |
1705 | Return nil if CHARSET doesn't include CH. | |
17e7ef1b | 1706 | |
3263d5a2 KH |
1707 | Optional argument RESTRICTION specifies a way to map CHAR to a |
1708 | code-point in CCS. Currently not supported and just ignored. */) | |
1709 | (ch, charset, restriction) | |
1710 | Lisp_Object ch, charset, restriction; | |
4ed46869 | 1711 | { |
16fed1fc | 1712 | int id; |
3263d5a2 KH |
1713 | unsigned code; |
1714 | struct charset *charsetp; | |
046b1f03 | 1715 | |
3263d5a2 KH |
1716 | CHECK_CHARSET_GET_ID (charset, id); |
1717 | CHECK_NATNUM (ch); | |
3263d5a2 | 1718 | charsetp = CHARSET_FROM_ID (id); |
16fed1fc | 1719 | code = ENCODE_CHAR (charsetp, XINT (ch)); |
3263d5a2 KH |
1720 | if (code == CHARSET_INVALID_CODE (charsetp)) |
1721 | return Qnil; | |
1722 | if (code > 0x7FFFFFF) | |
1723 | return Fcons (make_number (code >> 16), make_number (code & 0xFFFF)); | |
1724 | return make_number (code); | |
beeedaad KH |
1725 | } |
1726 | ||
beeedaad | 1727 | |
b121a744 KH |
1728 | DEFUN ("make-char", Fmake_char, Smake_char, 1, 5, 0, |
1729 | doc: | |
1730 | /* Return a character of CHARSET whose position codes are CODEn. | |
1731 | ||
1732 | CODE1 through CODE4 are optional, but if you don't supply sufficient | |
1733 | position codes, it is assumed that the minimum code in each dimension | |
04c2f2c5 | 1734 | is specified. */) |
b121a744 KH |
1735 | (charset, code1, code2, code3, code4) |
1736 | Lisp_Object charset, code1, code2, code3, code4; | |
beeedaad | 1737 | { |
3263d5a2 KH |
1738 | int id, dimension; |
1739 | struct charset *charsetp; | |
b121a744 KH |
1740 | unsigned code; |
1741 | int c; | |
87b089ad | 1742 | |
3263d5a2 KH |
1743 | CHECK_CHARSET_GET_ID (charset, id); |
1744 | charsetp = CHARSET_FROM_ID (id); | |
4ed46869 | 1745 | |
b121a744 KH |
1746 | dimension = CHARSET_DIMENSION (charsetp); |
1747 | if (NILP (code1)) | |
d47073ca KH |
1748 | code = (CHARSET_ASCII_COMPATIBLE_P (charsetp) |
1749 | ? 0 : CHARSET_MIN_CODE (charsetp)); | |
3263d5a2 | 1750 | else |
859f2b3c | 1751 | { |
b121a744 KH |
1752 | CHECK_NATNUM (code1); |
1753 | if (XFASTINT (code1) >= 0x100) | |
1754 | args_out_of_range (make_number (0xFF), code1); | |
1755 | code = XFASTINT (code1); | |
859f2b3c | 1756 | |
b0a1e45e | 1757 | if (dimension > 1) |
beeedaad | 1758 | { |
b121a744 | 1759 | code <<= 8; |
b0a1e45e KH |
1760 | if (NILP (code2)) |
1761 | code |= charsetp->code_space[(dimension - 2) * 4]; | |
beeedaad | 1762 | else |
b121a744 | 1763 | { |
b0a1e45e KH |
1764 | CHECK_NATNUM (code2); |
1765 | if (XFASTINT (code2) >= 0x100) | |
1766 | args_out_of_range (make_number (0xFF), code2); | |
1767 | code |= XFASTINT (code2); | |
b121a744 | 1768 | } |
99529c2c | 1769 | |
b0a1e45e | 1770 | if (dimension > 2) |
b121a744 KH |
1771 | { |
1772 | code <<= 8; | |
b0a1e45e KH |
1773 | if (NILP (code3)) |
1774 | code |= charsetp->code_space[(dimension - 3) * 4]; | |
b121a744 KH |
1775 | else |
1776 | { | |
b0a1e45e KH |
1777 | CHECK_NATNUM (code3); |
1778 | if (XFASTINT (code3) >= 0x100) | |
1779 | args_out_of_range (make_number (0xFF), code3); | |
1780 | code |= XFASTINT (code3); | |
1781 | } | |
1782 | ||
1783 | if (dimension > 3) | |
1784 | { | |
1785 | code <<= 8; | |
1786 | if (NILP (code4)) | |
1787 | code |= charsetp->code_space[0]; | |
1788 | else | |
1789 | { | |
1790 | CHECK_NATNUM (code4); | |
1791 | if (XFASTINT (code4) >= 0x100) | |
1792 | args_out_of_range (make_number (0xFF), code4); | |
1793 | code |= XFASTINT (code4); | |
1794 | } | |
b121a744 KH |
1795 | } |
1796 | } | |
beeedaad | 1797 | } |
859f2b3c | 1798 | } |
beeedaad | 1799 | |
b121a744 KH |
1800 | if (CHARSET_ISO_FINAL (charsetp) >= 0) |
1801 | code &= 0x7F7F7F7F; | |
1802 | c = DECODE_CHAR (charsetp, code); | |
1803 | if (c < 0) | |
1804 | error ("Invalid code(s)"); | |
3263d5a2 | 1805 | return make_number (c); |
4ed46869 KH |
1806 | } |
1807 | ||
beeedaad | 1808 | |
3263d5a2 KH |
1809 | /* Return the first charset in CHARSET_LIST that contains C. |
1810 | CHARSET_LIST is a list of charset IDs. If it is nil, use | |
1811 | Vcharset_ordered_list. */ | |
beeedaad | 1812 | |
3263d5a2 KH |
1813 | struct charset * |
1814 | char_charset (c, charset_list, code_return) | |
1815 | int c; | |
1816 | Lisp_Object charset_list; | |
1817 | unsigned *code_return; | |
2e344af3 | 1818 | { |
3263d5a2 KH |
1819 | if (NILP (charset_list)) |
1820 | charset_list = Vcharset_ordered_list; | |
beeedaad | 1821 | |
3263d5a2 | 1822 | while (CONSP (charset_list)) |
2e344af3 | 1823 | { |
3263d5a2 KH |
1824 | struct charset *charset = CHARSET_FROM_ID (XINT (XCAR (charset_list))); |
1825 | unsigned code = ENCODE_CHAR (charset, c); | |
beeedaad | 1826 | |
3263d5a2 | 1827 | if (code != CHARSET_INVALID_CODE (charset)) |
beeedaad | 1828 | { |
3263d5a2 KH |
1829 | if (code_return) |
1830 | *code_return = code; | |
1831 | return charset; | |
3f62427c | 1832 | } |
3263d5a2 | 1833 | charset_list = XCDR (charset_list); |
3f62427c | 1834 | } |
3263d5a2 | 1835 | return NULL; |
3f62427c KH |
1836 | } |
1837 | ||
2e344af3 | 1838 | |
3263d5a2 | 1839 | DEFUN ("split-char", Fsplit_char, Ssplit_char, 1, 1, 0, |
3cc67a4d KH |
1840 | doc: |
1841 | /*Return list of charset and one to four position-codes of CHAR. | |
1842 | The charset is decided by the current priority order of charsets. | |
1843 | A position-code is a byte value of each dimension of the code-point of | |
1844 | CHAR in the charset. */) | |
3263d5a2 KH |
1845 | (ch) |
1846 | Lisp_Object ch; | |
4ed46869 | 1847 | { |
3263d5a2 KH |
1848 | struct charset *charset; |
1849 | int c, dimension; | |
1850 | unsigned code; | |
4ed46869 KH |
1851 | Lisp_Object val; |
1852 | ||
3263d5a2 KH |
1853 | CHECK_CHARACTER (ch); |
1854 | c = XFASTINT (ch); | |
1855 | charset = CHAR_CHARSET (c); | |
1856 | if (! charset) | |
3cc67a4d | 1857 | abort (); |
3263d5a2 KH |
1858 | code = ENCODE_CHAR (charset, c); |
1859 | if (code == CHARSET_INVALID_CODE (charset)) | |
1860 | abort (); | |
1861 | dimension = CHARSET_DIMENSION (charset); | |
3cc67a4d KH |
1862 | for (val = Qnil; dimension > 0; dimension--) |
1863 | { | |
1864 | val = Fcons (make_number (code & 0xFF), val); | |
1865 | code >>= 8; | |
1866 | } | |
3263d5a2 | 1867 | return Fcons (CHARSET_NAME (charset), val); |
4ed46869 KH |
1868 | } |
1869 | ||
740f080d | 1870 | |
3263d5a2 | 1871 | DEFUN ("char-charset", Fchar_charset, Schar_charset, 1, 1, 0, |
327719ee | 1872 | doc: /* Return the charset of highest priority that contains CH. */) |
fdb82f93 | 1873 | (ch) |
4ed46869 KH |
1874 | Lisp_Object ch; |
1875 | { | |
3263d5a2 | 1876 | struct charset *charset; |
4ed46869 | 1877 | |
3263d5a2 KH |
1878 | CHECK_CHARACTER (ch); |
1879 | charset = CHAR_CHARSET (XINT (ch)); | |
1880 | return (CHARSET_NAME (charset)); | |
4ed46869 KH |
1881 | } |
1882 | ||
17e7ef1b | 1883 | |
3263d5a2 KH |
1884 | DEFUN ("charset-after", Fcharset_after, Scharset_after, 0, 1, 0, |
1885 | doc: /* | |
1886 | Return charset of a character in the current buffer at position POS. | |
1887 | If POS is nil, it defauls to the current point. | |
1888 | If POS is out of range, the value is nil. */) | |
1889 | (pos) | |
1890 | Lisp_Object pos; | |
2e344af3 | 1891 | { |
3263d5a2 KH |
1892 | Lisp_Object ch; |
1893 | struct charset *charset; | |
046b1f03 | 1894 | |
3263d5a2 KH |
1895 | ch = Fchar_after (pos); |
1896 | if (! INTEGERP (ch)) | |
1897 | return ch; | |
1898 | charset = CHAR_CHARSET (XINT (ch)); | |
1899 | return (CHARSET_NAME (charset)); | |
6ae1f27e | 1900 | } |
9036eb45 | 1901 | |
87b089ad | 1902 | |
3263d5a2 KH |
1903 | DEFUN ("iso-charset", Fiso_charset, Siso_charset, 3, 3, 0, |
1904 | doc: /* | |
1905 | Return charset of ISO's specification DIMENSION, CHARS, and FINAL-CHAR. | |
1906 | ||
1907 | ISO 2022's designation sequence (escape sequence) distinguishes charsets | |
1908 | by their DIMENSION, CHARS, and FINAL-CHAR, | |
1909 | where as Emacs distinguishes them by charset symbol. | |
1910 | See the documentation of the function `charset-info' for the meanings of | |
1911 | DIMENSION, CHARS, and FINAL-CHAR. */) | |
1912 | (dimension, chars, final_char) | |
1913 | Lisp_Object dimension, chars, final_char; | |
6ae1f27e | 1914 | { |
3263d5a2 | 1915 | int id; |
82215ce9 | 1916 | int chars_flag; |
a8a35e61 | 1917 | |
3263d5a2 | 1918 | check_iso_charset_parameter (dimension, chars, final_char); |
82215ce9 KH |
1919 | chars_flag = XFASTINT (chars) == 96; |
1920 | id = ISO_CHARSET_TABLE (XFASTINT (dimension), chars_flag, | |
3263d5a2 KH |
1921 | XFASTINT (final_char)); |
1922 | return (id >= 0 ? CHARSET_NAME (CHARSET_FROM_ID (id)) : Qnil); | |
046b1f03 RS |
1923 | } |
1924 | ||
87b089ad | 1925 | |
3263d5a2 KH |
1926 | DEFUN ("clear-charset-maps", Fclear_charset_maps, Sclear_charset_maps, |
1927 | 0, 0, 0, | |
1928 | doc: /* | |
1929 | Clear encoder and decoder of charsets that are loaded from mapfiles. */) | |
1930 | () | |
87b089ad | 1931 | { |
53316e55 | 1932 | int i; |
3263d5a2 KH |
1933 | struct charset *charset; |
1934 | Lisp_Object attrs; | |
87b089ad | 1935 | |
3263d5a2 | 1936 | for (i = 0; i < charset_table_used; i++) |
87b089ad | 1937 | { |
3263d5a2 KH |
1938 | charset = CHARSET_FROM_ID (i); |
1939 | attrs = CHARSET_ATTRIBUTES (charset); | |
2e344af3 | 1940 | |
3263d5a2 KH |
1941 | if (CHARSET_METHOD (charset) == CHARSET_METHOD_MAP) |
1942 | { | |
1943 | CHARSET_ATTR_DECODER (attrs) = Qnil; | |
1944 | CHARSET_ATTR_ENCODER (attrs) = Qnil; | |
1945 | CHARSET_METHOD (charset) = CHARSET_METHOD_MAP_DEFERRED; | |
1946 | } | |
2e344af3 | 1947 | |
3263d5a2 KH |
1948 | if (CHARSET_UNIFIED_P (charset)) |
1949 | CHARSET_ATTR_DEUNIFIER (attrs) = Qnil; | |
2e344af3 | 1950 | } |
2e344af3 | 1951 | |
3263d5a2 | 1952 | if (CHAR_TABLE_P (Vchar_unified_charset_table)) |
2e344af3 | 1953 | { |
3263d5a2 KH |
1954 | Foptimize_char_table (Vchar_unified_charset_table); |
1955 | Vchar_unify_table = Vchar_unified_charset_table; | |
1956 | Vchar_unified_charset_table = Qnil; | |
87b089ad | 1957 | } |
740f080d | 1958 | |
3263d5a2 | 1959 | return Qnil; |
740f080d KH |
1960 | } |
1961 | ||
8ddf5e57 DL |
1962 | DEFUN ("charset-priority-list", Fcharset_priority_list, |
1963 | Scharset_priority_list, 0, 1, 0, | |
1964 | doc: /* Return the list of charsets ordered by priority. | |
1965 | HIGHESTP non-nil means just return the highest priority one. */) | |
1966 | (highestp) | |
1967 | Lisp_Object highestp; | |
2e344af3 | 1968 | { |
8ddf5e57 | 1969 | Lisp_Object val = Qnil, list = Vcharset_ordered_list; |
2e344af3 | 1970 | |
8ddf5e57 | 1971 | if (!NILP (highestp)) |
16fed1fc | 1972 | return CHARSET_NAME (CHARSET_FROM_ID (XINT (Fcar (list)))); |
2e344af3 | 1973 | |
8ddf5e57 | 1974 | while (!NILP (list)) |
2e344af3 | 1975 | { |
16fed1fc | 1976 | val = Fcons (CHARSET_NAME (CHARSET_FROM_ID (XINT (XCAR (list)))), val); |
8ddf5e57 | 1977 | list = XCDR (list); |
2e344af3 | 1978 | } |
8ddf5e57 | 1979 | return Fnreverse (val); |
2e344af3 KH |
1980 | } |
1981 | ||
8ddf5e57 DL |
1982 | DEFUN ("set-charset-priority", Fset_charset_priority, Sset_charset_priority, |
1983 | 1, MANY, 0, | |
1984 | doc: /* Assign higher priority to the charsets given as arguments. | |
1985 | usage: (set-charset-priority &rest charsets) */) | |
1986 | (nargs, args) | |
1987 | int nargs; | |
4ed46869 KH |
1988 | Lisp_Object *args; |
1989 | { | |
af7c60ca | 1990 | Lisp_Object new_head, old_list, arglist[2]; |
321c819c | 1991 | Lisp_Object list_2022, list_emacs_mule; |
16fed1fc | 1992 | int i, id; |
4ed46869 | 1993 | |
8ddf5e57 | 1994 | old_list = Fcopy_sequence (Vcharset_ordered_list); |
af7c60ca | 1995 | new_head = Qnil; |
8ddf5e57 | 1996 | for (i = 0; i < nargs; i++) |
4ed46869 | 1997 | { |
8ddf5e57 | 1998 | CHECK_CHARSET_GET_ID (args[i], id); |
af7c60ca KH |
1999 | if (! NILP (Fmemq (make_number (id), old_list))) |
2000 | { | |
2001 | old_list = Fdelq (make_number (id), old_list); | |
2002 | new_head = Fcons (make_number (id), new_head); | |
2003 | } | |
5729c92f | 2004 | } |
8ddf5e57 DL |
2005 | arglist[0] = Fnreverse (new_head); |
2006 | arglist[1] = old_list; | |
2007 | Vcharset_ordered_list = Fnconc (2, arglist); | |
dbbb237d | 2008 | charset_ordered_list_tick++; |
5729c92f | 2009 | |
321c819c | 2010 | for (old_list = Vcharset_ordered_list, list_2022 = list_emacs_mule = Qnil; |
d017b41e | 2011 | CONSP (old_list); old_list = XCDR (old_list)) |
5729c92f | 2012 | { |
e77415b0 | 2013 | if (! NILP (Fmemq (XCAR (old_list), Viso_2022_charset_list))) |
321c819c KH |
2014 | list_2022 = Fcons (XCAR (old_list), list_2022); |
2015 | if (! NILP (Fmemq (XCAR (old_list), Vemacs_mule_charset_list))) | |
2016 | list_emacs_mule = Fcons (XCAR (old_list), list_emacs_mule); | |
4ed46869 | 2017 | } |
321c819c KH |
2018 | Viso_2022_charset_list = Fnreverse (list_2022); |
2019 | Vemacs_mule_charset_list = Fnreverse (list_emacs_mule); | |
4ed46869 | 2020 | |
8ddf5e57 | 2021 | return Qnil; |
4ed46869 KH |
2022 | } |
2023 | ||
d5b33309 KH |
2024 | DEFUN ("charset-id-internal", Fcharset_id_internal, Scharset_id_internal, |
2025 | 0, 1, 0, | |
2026 | doc: /* Internal use only. | |
2027 | Return charset identification number of CHARSET. */) | |
2028 | (charset) | |
2029 | Lisp_Object charset; | |
4ed46869 | 2030 | { |
d5b33309 | 2031 | int id; |
4ed46869 | 2032 | |
d5b33309 KH |
2033 | CHECK_CHARSET_GET_ID (charset, id); |
2034 | return make_number (id); | |
4ed46869 KH |
2035 | } |
2036 | ||
4ed46869 | 2037 | \f |
3263d5a2 KH |
2038 | void |
2039 | init_charset () | |
4ed46869 | 2040 | { |
4beef065 KH |
2041 | Vcharset_map_path |
2042 | = Fcons (Fexpand_file_name (build_string ("charsets"), Vdata_directory), | |
2043 | Qnil); | |
4ed46869 KH |
2044 | } |
2045 | ||
4ed46869 | 2046 | |
dfcf069d | 2047 | void |
4ed46869 KH |
2048 | init_charset_once () |
2049 | { | |
2050 | int i, j, k; | |
2051 | ||
3263d5a2 KH |
2052 | for (i = 0; i < ISO_MAX_DIMENSION; i++) |
2053 | for (j = 0; j < ISO_MAX_CHARS; j++) | |
2054 | for (k = 0; k < ISO_MAX_FINAL; k++) | |
2055 | iso_charset_table[i][j][k] = -1; | |
4ed46869 | 2056 | |
60383934 | 2057 | for (i = 0; i < 256; i++) |
3263d5a2 | 2058 | emacs_mule_charset[i] = NULL; |
4ed46869 | 2059 | |
7c7dceee KH |
2060 | charset_jisx0201_roman = -1; |
2061 | charset_jisx0208_1978 = -1; | |
2062 | charset_jisx0208 = -1; | |
4ed46869 KH |
2063 | |
2064 | for (i = 0; i < 128; i++) | |
14e3d523 | 2065 | unibyte_to_multibyte_table[i] = i; |
4ed46869 | 2066 | for (; i < 256; i++) |
170e4589 | 2067 | unibyte_to_multibyte_table[i] = BYTE8_TO_CHAR (i); |
4ed46869 KH |
2068 | } |
2069 | ||
2070 | #ifdef emacs | |
2071 | ||
dfcf069d | 2072 | void |
4ed46869 KH |
2073 | syms_of_charset () |
2074 | { | |
3263d5a2 KH |
2075 | DEFSYM (Qcharsetp, "charsetp"); |
2076 | ||
2077 | DEFSYM (Qascii, "ascii"); | |
2078 | DEFSYM (Qunicode, "unicode"); | |
2fe1edd1 | 2079 | DEFSYM (Qeight_bit, "eight-bit"); |
3263d5a2 KH |
2080 | DEFSYM (Qiso_8859_1, "iso-8859-1"); |
2081 | ||
2082 | DEFSYM (Qgl, "gl"); | |
2083 | DEFSYM (Qgr, "gr"); | |
2084 | ||
3263d5a2 KH |
2085 | staticpro (&Vcharset_ordered_list); |
2086 | Vcharset_ordered_list = Qnil; | |
2087 | ||
2088 | staticpro (&Viso_2022_charset_list); | |
2089 | Viso_2022_charset_list = Qnil; | |
2090 | ||
2091 | staticpro (&Vemacs_mule_charset_list); | |
2092 | Vemacs_mule_charset_list = Qnil; | |
2093 | ||
2094 | staticpro (&Vcharset_hash_table); | |
8f924df7 KH |
2095 | { |
2096 | Lisp_Object args[2]; | |
2097 | args[0] = QCtest; | |
2098 | args[1] = Qeq; | |
2099 | Vcharset_hash_table = Fmake_hash_table (2, args); | |
2100 | } | |
3263d5a2 KH |
2101 | |
2102 | charset_table_size = 128; | |
2103 | charset_table = ((struct charset *) | |
2104 | xmalloc (sizeof (struct charset) * charset_table_size)); | |
2105 | charset_table_used = 0; | |
2106 | ||
2107 | staticpro (&Vchar_unified_charset_table); | |
2108 | Vchar_unified_charset_table = Fmake_char_table (Qnil, make_number (-1)); | |
2109 | ||
2110 | defsubr (&Scharsetp); | |
2111 | defsubr (&Smap_charset_chars); | |
2112 | defsubr (&Sdefine_charset_internal); | |
2113 | defsubr (&Sdefine_charset_alias); | |
d1a04588 KH |
2114 | defsubr (&Sunibyte_charset); |
2115 | defsubr (&Sset_unibyte_charset); | |
3263d5a2 KH |
2116 | defsubr (&Scharset_plist); |
2117 | defsubr (&Sset_charset_plist); | |
2118 | defsubr (&Sunify_charset); | |
3fac5a51 | 2119 | defsubr (&Sget_unused_iso_final_char); |
4ed46869 KH |
2120 | defsubr (&Sdeclare_equiv_charset); |
2121 | defsubr (&Sfind_charset_region); | |
2122 | defsubr (&Sfind_charset_string); | |
3263d5a2 KH |
2123 | defsubr (&Sdecode_char); |
2124 | defsubr (&Sencode_char); | |
4ed46869 | 2125 | defsubr (&Ssplit_char); |
3263d5a2 | 2126 | defsubr (&Smake_char); |
4ed46869 | 2127 | defsubr (&Schar_charset); |
90d7b74e | 2128 | defsubr (&Scharset_after); |
4ed46869 | 2129 | defsubr (&Siso_charset); |
3263d5a2 | 2130 | defsubr (&Sclear_charset_maps); |
8ddf5e57 DL |
2131 | defsubr (&Scharset_priority_list); |
2132 | defsubr (&Sset_charset_priority); | |
d5b33309 | 2133 | defsubr (&Scharset_id_internal); |
3263d5a2 | 2134 | |
4beef065 KH |
2135 | DEFVAR_LISP ("charset-map-path", &Vcharset_map_path, |
2136 | doc: /* *Lisp of directories to search for charset map files. */); | |
2137 | Vcharset_map_path = Qnil; | |
4ed46869 KH |
2138 | |
2139 | DEFVAR_LISP ("charset-list", &Vcharset_list, | |
528623a0 | 2140 | doc: /* List of all charsets ever defined. */); |
3263d5a2 KH |
2141 | Vcharset_list = Qnil; |
2142 | ||
2fe1edd1 KH |
2143 | charset_ascii |
2144 | = define_charset_internal (Qascii, 1, "\x00\x7F\x00\x00\x00\x00", | |
2145 | 0, 127, 'B', -1, 0, 1, 0, 0); | |
14e3d523 KH |
2146 | charset_iso_8859_1 |
2147 | = define_charset_internal (Qiso_8859_1, 1, "\x00\xFF\x00\x00\x00\x00", | |
2148 | 0, 255, -1, -1, -1, 1, 0, 0); | |
2fe1edd1 | 2149 | charset_unicode |
73fbf2d9 | 2150 | = define_charset_internal (Qunicode, 3, "\x00\xFF\x00\xFF\x00\x10", |
2fe1edd1 KH |
2151 | 0, MAX_UNICODE_CHAR, -1, 0, -1, 1, 0, 0); |
2152 | charset_eight_bit | |
2153 | = define_charset_internal (Qeight_bit, 1, "\x80\xFF\x00\x00\x00\x00", | |
2154 | 128, 255, -1, 0, -1, 0, 0, | |
2155 | MAX_5_BYTE_CHAR + 1); | |
4ed46869 KH |
2156 | } |
2157 | ||
2158 | #endif /* emacs */ | |
cefd8c4f KH |
2159 | |
2160 | /* arch-tag: 66a89b8d-4c28-47d3-9ca1-56f78440d69f | |
2161 | (do not change this comment) */ |